Well, hello! Allow me to get straight to the point. I can always recommend some roleplays that have exceptional writers that I know (sort of).
Camp Athens II if you are looking for a Demigod RP. It is pretty active, and I am personally part of it. Not that I am all that important!
Havoc is a Teen Wolf based Roleplay that is looking for more characters before starting. Yes, I am shamelessly plugging it in here because I joined and it looks like fun. A small group of characters is really ideal for story building.
Guardians of Hell if you like more gothic, dark, witchy themes. I am sure there may be a spot or two open, and the creator is very active from what I have seen thus far.
If not of those amuse you, feel free to peruse the various universes or dip into the Multiverse (I have zero multiverse experience, but it is always active).
I know that there are other, probably magnificent, roleplays out there waiting for someone like you, but these are just the ones with writers that I have gotten to know a little bit.
Anyway! Look forward to seeing you about.
<3