I've been longing for an RP where our charactersare the children of various Gods from mythology.
You should look into a Tabletop RPG called Scion. It's a white wolf game (Same people who made vampire the masquerade) that's pretty much exactly that. It's a system where the players play as the children of a number of different deities ranging from different pantheons like Norse, Shinto, the loa and American folk heroes... for some reason.
I'd tell you more but I never got past character creation, I ended up making a stuntman who was the son of Sun Wukong, we ended up just playing 5e though cause it was easier for the DM.
At the minute I'm very much into sci-fi and so I'd love to see a sort of grounded in reality sci-fi RP (things that could possibly happen whenever irl space exploration and stuff becomes a thing etc). Apart from that though I've always longed for a straight up high fantasy RP with a nice blend of historical accuracy but also with some creatures/magic etc thrown in (GOT style), I was in an old RP like this back in the day and I have to say I love every minute of it 🙂