Standing under its belly definetly works after wasting 80 tranq arrows barely did any damage to a lvl 35 diplo. Just don’t let the food run minimally low otherwise you lose the tame effectiveness.... upvote !
Grapple hook on to it. Hold to Reel yourself in, continuously feeding it while staying grappled. Rarely will hit you as it spins trying to reach you. Grapple wont releas because as long as you dont hit it, it wont count as combat