If you have a fast creature shot it with tranq aroows till it gets close then hop on your take and run like crazy, then repeat. Mejoberries and 30 narco berries tamed me up a level 24 with tame boost to 35 on mobile at level 13 with my tranadon I couldn't lose. :)
They're good for raiding. Tame a bunch, level their health and use them to drain turrets.
1. They have lots of health
2. They have damage reduction, so they'll take less damage from the turrets.
Low level ones can get about 5000 thousand health and higher levels can end up with around 20000 health.
Other than that high level ones can do decent damage and they have a knock back effect with their tail.
Their saddle is cheap to make.
A lot of people say they're not any good, but I think they are underrated. Yes the tame process is long, that's probably the only con.
Stand on a tall rock and tranq it or make a dino pen if it's easier.