Hey there,
A few questions. Are you horde or alliance? 
How “not serious” for raiding are you looking for? Are you looking only to achieve AOTC?
Our guild is a Casual Heroic progression currently 5/8H in need for dps. WE have obtained AOTC every tier in Legion and aiming to do so for BFA. We are a laid back, chill group who still enjoy raiding with a fun and positive attitude.
If you are interested come check us out: https://us.forums.blizzard.com/en/wow/t/twisted-reflection-guild-recruitment