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.
Everyone is saying that you should tame it with a meg.
But Not everyone has tek so i will explain a other method… Tame a quetz and make a platformsaddle,then Place a Canon on it and Shot the Titan in the head. Be careful because Body Shorts does Not count to knock it out.If you knock it out you just simply Go in its invetory and put on the saddle.