As Cities Skylines II still isn’t worth it (the sub has a regular thread about that, in summary: no it’s not: https://old.reddit.com/r/CitiesSkylines/comments/1ch6lup/is_cities_skylines_ii_worth_it_megathread/) which games scratch your city building itch?
I play a lot of random city builders and enjoyed most of what’s already listed by others here.
Haven’t seen these ones mentioned yet (I think), but you could check out these to see if any tickle your fancy:
Modern:
Prehistoric:
Casual:
Fantasy:
Medieval:
Sci-fi:
I honestly love Going Medieval. I found out about it from Spiffing Brit and Ambiguous Amphibian videos and have made a few different settlements since.