If your going tI take it I suggest you don't try to solo tame it unless you want to die.Best thing to do is to have 3 tribe mates and a quetz with a platform saddle with 2 cannons for the passengers and the drive has a rocket.get far enough away so it doesn't hit the quetzal.Then make sure you have the saddle in one of your inventory's.
You hit it with cannons on a quetzal. Go for it’s head. It’s torpor won’t drain either so take your time. They can’t eat just stuff a platform saddle on the titan once KO’ed. You use daedons to heal it when it’s food level is low.
If you try taming these guys, tame a Quetzal first and equip it with a platform saddle. Then, put 2 storage boxes on it and a cannon. Make sure you make LOTS of cannon balls. Then, shoot the titan in the head.