Hey there, Kozra.
Wolfmane Tribe is indeed still going strong. In fact their recruitment thread is still pretty current at the top of the WrA forums here.
As far as monk and monk training, I’m afraid I’m not aware of any groups currently running with this theme.
In terms of PvE, there are a few guilds participating in current content. The addition of fated raids and new/old M+ dungeons has drawn a lot of people back.
Otherwise, if you’re really curious about the state of the community and have a desire to participate in it again, I would direct you to the Wyrmrest Community Project.
Wyrmrest Community Project - Wyrmrest Accord - World of Warcraft Forums (blizzard.com)