Welcome back! There are several RP guilds around that are looking for new friends. Do you have anything specific in mind or are you looking for more broad strokes?
You should take a look here to go through some of them and their recruitment threads to see if any of them sound interesting to you.
https://us.forums.blizzard.com/en/wow/t/wra-information-directories/651240/22
I also recommend joining the LFRP communities in game. Find out more about them here: https://us.forums.blizzard.com/en/wow/t/ah-lfrp-community/696658?u=gwyneth-wyrmrest-accord