Hey there 
Not sure if you’re still looking, but my guild, The Collective is on Barthilas.
We currently have an AOTC raid team (Wed/Mon 8:15-10:30pm aest) and a mythic raid team (Wed/Mon 8:15-10:30pm aest) - subject to tryouts for the mythic team.
We also run more casual raid runs that are open to everyone and have lots of members that run M+.
Link for our current recruitment post → [A/H] Barthilas Tanks/Healers/DPS
If you have any further questions or wish to discuss further, feel free to add me on discord: cynters or so1orage