Welcome back to FH, friend!
The only tip(s) I'd really have for joining role plays is to know what you're getting yourself into. Some times you'll join a role play and there's sudden drama everywhere! I've had it happen a few times, and its definitely not fun. So I'd just be careful about which role plays you'd want to join.
There's a lot of role plays that are currently out in-game and many large/popular role plays as well. For example, if you want an active dog/canine role play, there's Unchained. (Though keep in mind they're mapless.) If you want an active warrior cat role play, there's The Great Forest! There's also many other types of role plays out currently as well including lions, hyenas, wolves, and even smilodons!