I'm in three right now! (and not really looking to expand as I've proven it's my realistic limit when it comes to RPs haha)
Titans is a superhero RP and a sequel to the first iteration of Titans. You play as a hero who is recruited into a rebellion to overthrow the city's tyrannical mind-controlling leader. I play as the Greek ocean goddess Nerites, who now helps humanity as much as she can after discovering that she is the last remaining being of her kind. Super hype for this one obviously, Nerites ranks as one of my favourite characters I've designed ever so obviously one of my best RPs.
Gunpowder is a dark, old-west based RP with magic thrown into the mix. There's outlaws and bounty hunters, but also talking animals, demons, and even more crazy shit that you wouldn't even expect to see in a cowboy setting. I play as Sophia, the mega-bitch and fomer gang member with anger issues who now rules her own gang. Gunpowder is probably the most iconic RP I'm in, since it's been going for so long, and our cast is pretty tight (as tight as cold blooded killers can be) so I'd never imagine the RPT without it.
Dust/AtDS/As The Dust Settles is a RWBY based RP, and I'm the GM! It's basically a prequel to the great Faunus war mentioned in the show. You get to play as either a human or faunus hunter team, in the year leading to the war. You get to fight Grimm, other hunters, and even other players - basically fight scenes all day. I play as team JSMN along with Alby (Jill Sandwich), which is composed of Jairo, the vengeful spider faunus, Sahn, his sister, Mira, the owl faunus and also the leader of the team, and Nel, the psychotic and unstable hawk faunus. We're currently at Act 4, so just one act away from war :D
Unless something amazing pops up, I doubt I'd join any new RP for now. Semester just started last week (not like that's a huge issue anyway) so I do have to be picky with what I'm with. I've got more than enough to do with what I currently got though!