Japanese!
Magyards, I just like to completely flood the enemy with Hussars.
How has no one said Chinese yet?
Huns huns huns huns
Dravidians.
They have archers, EA, infantry, a good UU, bombards.
It’s called “Life of Hoang”.
Cumans because I love the cheap stables and ranges
Saracens
Goths
No one said the BRITONS!!!
Portuguese : Solid unique unit , good technology tree , and did I mention organ guns
Bengalis.
Good for both low eco all in and boom scenarios.