Bola them first and tranq dart them, anything above lvl 35 will take more than 1 bola lvl 95 and up is going to a struggle if you’ve just spawned in, but great travel mount and great in combat just pump health and melee, stam doesn’t drop that much, similar to a thyla
Build a 4x4 pen out of stone doorways that is 4 high with a zip line coming down into it while a ravager is chasing you get on the zip line and go into the pen it will follow you then run out the doorway and knock it down when tamed you can get it out by climbing back up the zipline
You won't find anything more useful for keeping these guys still than a small bear trap. You can Bola and kill the other ones if it is in a pack but keep the high level one trapped for knocking out once you've killed it's pack. Up vote for other people
Either bola the pack and kill those u don’t want to tame (but u can’t get enough hits with tranq while bolad as it will get out) OR make a taming pen (stone) 2x2 or 2x3 foundations, 2 stone doorframes high and a Dino gate. Time it right as when they chase u, u can jump out and clear the wall. Run forward more as when they r about to attack they jump so they could get out
If you are near (safe) water, lure the ravagers in the water. They swim very slow so you can easily tranq or kill them. When they start running away, follow them out of the water and you can knock them out.