Hiyah!
I would like to join a raiding roster for 9.1, ideally a team with previous Cutting Edge experience, but even if you just aim to get it this tier, it’s totally fine and would consider any options!
My main guild looking criteria is making sure people I’m going to play with are chill, team oriented, and do their best to avoid toxic/raging behavior.
I have played in 9.0-9.0.5 a bit as well, but with a guild that raids in the mornings, and with my schedule I much rather prefer something around 20:00-23:00 ST in 9.1.
My wow career is old, I started casually in 3.3.5, but transitioned into more serious raiding, when I went to study in the US and got Cutting Edges from Emerald Nightmare(7.0) up until Uldir in BFA(8.0) on NA servers.
Here are some raiding logs from 9.0-9.0.5:
warcraftlogs .com/character/eu/ravencrest/trashh
warcraftlogs .com/character/eu/ravencrest/hashh
warcraftlogs .com/character/eu/ravencrest/ashhd
Logs from Uldir 8.0, but you can select previous legion raids to see more logs:
warcraftlogs .com/character/us/aerie-peak/envs?zone=24&new=true#zone=19
I strictly want to stay on Alliance, Ravencrest, EU for 9.1, so I might be hitting up your guild myself! 
Also, if any of you reading want to do some m+ or pvp, feel free to hit my up!
Discord: Ashh#5672
Bnet: ashh#21328
Thanks for reading, have a wonderful day!