Welcome to the guild!
I hope you find something you like here!

And we really just refer to ourselves as RPers.
Roleplay is a thing in itself, instead of a fandom.

Fandoms are another term for the fan bases that content generates.
So there is a such thing as "Fandom RP", which basically means RP within an already established universe which has built up a fanbase (i.e. Marvel).

Have fun! Have fun! Have fun!
Feel free to message me any questions you may have! 
I'll respond if I'm around!