Hello! My guild Evolved might be a good fit for you! We are an 18+ community and most of our members have families, jobs, etc so we understand the importance of real life coming first. Because of this, we do not require 100% raid attendance. We run multiple raid groups, so plenty of room for you! Everyone is super friendly, mature, and a ton of fun to be around. 
We like to focus on having a strong community as it makes the game so much more enjoyable! We do all kinds of things besides raiding such as M+, arena, world pvp, dungeons, etc. We just like having fun together! 
We raid Tues/Fri/Sat from 9-11 pm EST with an optional hour on Fri/Saturday. Evolved is an Alliance guild on the Proudmoore server. I know you said you aren’t able to transfer servers, but if you were wanting to level a new character, we would love to have you join us. I know we have a few people planning on leveling the new races anyways
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!