Easy to tame with just 2-3 people. One flying quetz with cannon facing off the back the other firing at the head. 3rd person can just use magnifying glass to check torpor occasionally. Unless you're under attack from another tribe then you'll need more there to protect you.
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.