What are all the Independent Powers so far?

I haven't seen anyone yet make a list of all of the confirmed independent powers in Civ VII and I'm personally really curious about this. I expected there to only be a few dozen like with city-states but it seems like there are tons of them, every video I watch I find out about like 5-10 new ones! Has anyone got a list of them or want to help make one by listing them below?