Hey there
Not sure if we’re exactly what you’re looking for but some friends and I are putting together a cross-realm heroic raiding community with the long term goal of building a mythic guild once we’ve established a stable core. You can read the recuitment post here.
We haven’t actually done anything as group yet (aiming to start next weekend) but if you want to check us you let me know and I can send logs of myself and/or the raid leader.