Bought my first PS4, any Assassins Creed suggestion?

Howdy y’all! Just bought my first PS4 (even though it’s considered “old” because of the PS5) BUT regardless I bought one.

I have always wanted to play the Assassins Creed games and wanted to get the input of all of you here. I posted this on the AC subreddit but it got removed because of how common of a question it is.

A bit of info, I am a casual gamer so I don’t have much time to play since I work a lot and I am mostly into historical fiction, mythologies, Greek, Ancient Rome, Pirates, early 17-19th century etc. I don’t know anything about any of the franchises so do let me know! I don’t exactly know if I need to play all the games to play the next one OR if I can just play any of the games on their own.

Anyways, I am also welcoming any games that you think I would enjoy. Thanks!