Hiya! and Welcome!
I really really like using Discord to find upcoming events! It is also loaded with tons of Guild and RP Groups, as well as individuals looking for specific types of RP! (That’s how I found my Nanny job!) Here is the Blizzard forum link to all things RP Discord! Hope it helps!
https://us.forums.blizzard.com/en/wow/t/mg-channeldiscord-server-listing-thread/127486