Hey! You sound like you might be a great fit for our guild Impaired, we are an Alliance guild on Ravencrest EU who does use a form of loot council. We achieved 7/10 Mythic Castle Nathria after coming into 9.0 late. We are currently 5/10 Mythic Sanctum of Domination working on Painsmith next. The goal this tier is Cutting Edge while keeping a fun atmosphere in our raids with no place for elitism. We are a more mature guild with the average player age around 27-28 and most of us have played the game in some capacity since TBC/Wrath, a lot of us having even played together most of that time. We actively try to run Mythic+ with the majority of our current roster having achieved Shadowlands Keystone Master Season 1 and 2.
You can read more about our guild here; [a][ravencrest] <impaired> - new 2 day raiding guild - #11 by Nuaik-ravencrest. If any of this sounds interesting to you please get in touch with any member of the guild in game, or message Nuaik#0010 on Discord Nuaik#0010 or Battle.net EpicChambers#2556.