Assyrians

Raid Masters: 

• +1 Land Movement Speed on Unit
• +5 Combat Strength bonus when Ransacking on Army

Dunnu:

• +1 Combat Strength in combat for Units in or adjacent to the District

• +2 Influence

• +10 District Fortification

• +5 Stability

• Exploits Food

• Count as "Garrison"

• Is: Land Unit Spawn.

• Is fortified

Assyrian Raiders:

• 21 CS
• 6 MP
• Generates +25% bonus Money when ransacking.

Babylonians

Brilliant Philosophers: 

• +3 Science per researched technologies on Capital

Ṣābu Ša Qašti:

• 22 CS
• 4 MP
• Guardian

Astronomy House:

• -10 Stability

• +3 Science

• +1 Faith per Researchers on City or Outpost

• +1 Science per Researchers on City or Outpost

• +1 Researchers Slot on City or Outpost

• Count as "Research Quarter"

• Requires "Calendar"

Hittites

Lust for War:

• +1 Combat Strength on Unit
• +20 Food, Industry, Money and Science on each Owned City per Occupied City 

Awari:

• +1 Combat Strength in combat for Units in or adjacent to the District

• +3 Money

• +10 District Fortification

• Replaces regular Outpost

• Can be used as a Land Spawn Point for neighbor Cities

• +10 Health Regeneration on Unit in Territory

• Is: Land Unit Spawn.

• Is fortified

Gigir:

• 23 CS
  
• 6 MP
• Suppression

Mycenaeans

Brutal Upbringing:

• -20% on Unit Industry cost
• +25 Experience on creating Units on City or Outpost 

Cyclopean Fortress:

• +2 Combat Strength in combat for Units in or adjacent to the District
• +10 Stability
• +20 District FortificationCount as "Makers Quarter"
• Count as "Garrison"
• Is: Land Unit Spawn
• Is fortified
• Increases the Movement cost of hostile armies within a range of 1 Tile

Promachoi:

• 21 CS
• 4 MP
• Champion

Nubians

Golden Dreams:

• +1 Money per number of resource copies on exploited Resource Deposit

Meroe Pyramids:

• +1 Money per Workers on City or Outpost
• +1 Production per Merchants on City or Outpost
• -10 Stability
• +3 Money per adjacent Makers Quarter
• +1 Traders Slot on City or Outpost
• Exploits Production

Ta-Seti Archers:

• 19 CS
• 4 MP
• 3 Range
• Greatly reduces the CS penalty from not having a clear line of sight

Olmecs

Natural Harmony:

•  +3 Influence on Territory 

Olmec Head:

• +2 Food
• -10 Stability
• +1 Food per adjacent District
• +1 Influence per adjacent District
• +1 Farmers Slot on City or Outpost
• Count as "Farmers Quarter"

Javelin Throwers:

• 21 CS
• 4 MP
• 2 Range
• Ambusher

Phoenicians

Trading Pioneers:

• -25% Money maintainance on naval trade routes
• +1 Combat Strength on Naval Unit or Transport
• +1 Naval Movement Speed on Naval Unit or Transport 

Haven:

• -10 Stability

• +3 Money per adjacent Land Tile

• +1 Money per Traders on City or Outpost

• +1 Food per Traders on City or Outpost  

• +1 Traders Slot on City or Outpost
• Count as "Market Quarter"
• Is: Naval Unit Spawn
• Allows Units to embark without any Movement Point cost

Bireme:

• 13 CS
• 2 MP
• Naval Transport
• Navigator

Celts

Druidic Lore:

• +2 Faith on Forest
• +2 Faith on Woodland

Nemeton:

• +2 Food per adjacent Forest
• +2 Food per adjacent Woodland
• Count as "Religious District"
• Exploits Food 
• Exploits Faith

Gaesati:

• 26 CS
• 6 MP
• Fervor

Greeks

Socratic Method:

• +3 Science per Number of Territories in your sphere of influence on City or Outpost

Amphitheatron:

• +3 Science per Era

• +1 Influence per Researchers on City or Outpost

• -10 Stability

• +1 Science per adjacent District

• Count as "Research Quarter"

Hoplites:

• 27 CS
• 4 MP
• Phalanx

Mauryans

Guiding Light:

• +1 Influence on Emblematic District
• -10% on Attach Outpost cost 

Stūpa:

• +3 Science
• +2 Influence
• -10 Stability
• +3 Faith
• +1 Science per adjacent District
• +1 Influence per adjacent District
• +1 Researchers Slot on City or Outpost
• Count as "Research Quarter"
• Count as "Religious District"

Saṃnāhya:

• 30 CS
• 6 MP
• 3 Range
• Elephant Platform

Maya

Tireless Spirit:

• +2 Industry per Workers on City or Outpost 

K'uh Nah:

• +5 Industry per number of attached Territories
• -10 Stability
• +2 Faith per adjacent District 
• +1 Influence per adjacent District
• Count as "Commons Quarter"
• Count as "Religious District"
• Doesn't exploit Industry

Noble Javelineers:

• 27 CS
• 4 MP
• 2 Range
• Poison

Byzantines

Master of Whispers:

• +8% Money per Alliance on all Cities 
• +5% Money on Allied Empire

Hippódromos:

• +1 Money per Horses
• +3 Money
• -10 Stability
• +25 Money per adjacent  Horses Deposit
• +1 Traders Slot on City or Outpost
• Count as "Market Quarter" 

Varangian Guards:

• 39 CS
• 4 MP
• Honor Code

Franks

Crown Lands:

• +7 Influence per number of attached Territories on Capital

Scriptorium:

• +3 Science
• -10 Stability
• +3 Faith
• +1 Science per adjacent Research Quarter
• +1 Faith per adjacent Research Quarter
• +2 Influence per adjacent Research Quarter
• +1 Researchers Slot on City or Outpost
• Count as "Research Quarter"

Franci Milites:

• 39 CS
• 6 MP
• Heavy Charge 

Mississippians

Flowing Waters:

• Districts built on Rivers exploit all the tile's yields indipendently on their District Type

Sacred Mound:

• -50% Industry cost reduction of adjacent Districts
• -10 Stability
• +2 Money per adjacent District
• +3 Industry on Religious District 
• +3 Faith on Religious District 
• Count as "Religious District"

Cahokia Raiders:

• 36 CS
• 4 MP
• Raider's Ardor

Umayyads

Learned Friends:

• +8% Science per Alliance on all Cities
• +5% Science on Allied Empire

Grand Mosque:

• +3 Science per number of Religious Disctrict on City or Outpost 
• -10 Stability
• +3 Faith per number of attached Territories
• +1 Researchers Slot on City or Outpost
• Count as "Research Quarter"
• Count as "Religious District"

Haras:

• 36 CS
• 6 MP
• +3 Stability in the territories they are (if they are yours)

Edo Japanese

Shogun's Authority:

• +1 Influence per Population on City or Outpost

Tera:

• +5 Faith
• +5 Influence per adjacent Mountain
• +3 Influence per adjacent Forest
• +3 Influence per adjacent Rocky Forest
• Count as "Religious District" 
• Can be freely placed

Naginata Samurai:

• 46 CS
• 5 MP
• Honor Code 

Joseon

Hall of Worthies:

• +3 Science on Tile producing  Science 

Seowon:

• +2 Influence
• +2 Science
• +5 Science per adjacent Mountain
• +3 Science per adjacent River
• -10 Stability
• -3 Science per adjacent  District
• +1 Researchers Slot on City or Outpost
• Count as " Research Quarter" 
• Can be placed freely

Geobukseon:

• 50 CS
• 6 MP
• 4 Range
• Ramming

Ottomans

Supremacy of Fire:

• -50% on Heavy Weapon Industry cost
• +3 Combat Strength on Heavy Weapon 

Sultan Camii:

• +1 Faith per District
• +3 Influence
• -10 Stability
• +2 Influence per adjacent District
• +2 Science per adjacent District
• Count as "Religious District"
• Count as "Commons Quarter"

Janissaries:

• 44 CS
• 4 MP
• 4 Range
• Siege Mastery

British

Colonial Riches:

• +10 Money per number of attached Territories on Capital
• +10 Science per number of attached Territories on Capital

Colonial Office:

• +2 Money per adjacent District
• +2 Money per adjacent District for Liege
• +1 Money per Population
• +1 Money per Population for Liege
• Count as "Market Quarter"
• Can be built in Vassal's territories
• Can be built in friendly Indipendent Peoples territory

Redcoats:

• 51 CS
• 4 MP
• 4 Range
• Expedition

Italians

Inspiring Virtuosos:

• +10 Stability on Commons Quarter
• +1 Influence on Commons Quarter
• -50% on Commons Quarter Industry cost 

Teatro:

• +1 Influence
• +1 Influence per Traders
• +1 Influence per Researchers
• Count as "Commons Quarter"

Alpini:

• 50 CS
• 5 MP
• Cliffs Crosser

Russians

Land and Glory:

• Upon conquering or claiming new territories you gain +10 Money per amount of Resources in the discovered Resource Depots present there
• +1 War Support per Hostile Unit within your borders

Sobor:

• +1 Faith per Farmers on City or Outpost
• +1 Faith per Workers on City or Outpost
• +3 Stability per adjacent District
• +3 Influence
• Count as "Religious District"
• Count as "Commons Quarter"

Cossacks:

• 46 CS
• 8 MP
• 4 Range
• Multi-Move

Americans

American Exceptionalism:

• +10 Influence on Resources being sold
• +1 Money generated from on-going Trade on City or Outpost

Defense Agency:

• +1 Science per Merchants on City or Outpost
• +1 Money per Researchers on City or Outpost
• +3 bonus  Combat Strength when launching Artillery, Air or Missile Strikes on Unit
• Count as "Garrison"

Lightning:

• 77 CS
• 20 Range
• Aerial Stealth

Egyptians

Valley of Kings:

• +4 Influence on Emblematic District

Archaeological Dig:

• -10 Stability
• +3 Influence
• +3 Influence per Eras that the Emblematic Building it was built on has passed since its construction

Free Officers:

• 58 CS
• 4 MP
• 4 Range 

Soviets

Red Tide:

• +3 Combat Strength on Unit in your sphere of influence
• +2 Influence on City or Outpost per Units within its territory

Arms Factory:

• +10 Pollution
• +5 Industry
• -10  Stability
• Count as "Makers Quarter"
• Creates a new Deposit of Weapons which is automatically exploited.
• +2 Combat Strength on Unit
• -5 Stability per Weapon on all Cities (alternatively: -5 Money per Weapon on all Cities)
• -3% on Unit Industry cost per Weapon

Red Army Tank:

• 60 CS
• 8 MP
• 6 Range
• Field Repairs

This should be the complete list of my suggestions for (most of) the cultures of the game.

I hope to hear what you or the devs think about it. I tried to make feel some medium-low tier cultures more original while attepting to fix some widely know Meta cultures

A1y0sh4 wrote:

Russians

Land and Glory:

• Upon conquering or claiming new territories you gain +10 Money per amount of Resources in the discovered Resource Depots present there
• +1 War Support per Hostile Unit within your borders

Other suggestions for the effects of the Russian LT:

• -20% War Score Cost when demanding territories in the Surrender Terms
• +1 War Support per Hostile Unit within your borders

• -50% War Score loss when fighting in your territory
• Units get a great CS bonus if heavily damaged when defending (ex: +6 CS when under 30 HP)

• +10 Experience on creating Unit per number of Territories on all Cities
• +1 Health on Units per number of Territories 

A1y0sh4 wrote:

Babylonians

Brilliant Philosophers: 

• +3 Science per researched technologies on Capital

Suggestion for another effect of the Babylonian LT (inspired from Hammurabi's code):

• +5 Science per enacted Civic on Capital (or +x%)

Maybe it doesn't really match the LT's name, but I found it to be quite an interesting possibility