Hello! My guild Evolved might be a good fit for you! We are a raiding guild, but have plenty of members who are more casual and are wanting the social aspect. We are an 18+ gaming community and have a very active Discord as well as guild chat! We do all kinds of things besides raiding such as M+, arena, world pvp, dungeons, etc. We just like having fun together! 
You can read more at:
You can contact me at BNet Starlight200#1548 or Discord Star#0700 if you have more questions.
I wish you luck in the guild hunt! Finding the right group makes a huge difference! 