Artifact mass collection - Dimorphadons are accessible to every cave, and every Dimorph can carry an artifact, the Artifact crates don't take long to respawn, so camp there for a little and make sure every player/dino has an artifact on them before leaving the cave, you'll have plenty of artifacts to display and use to summon bosses multiple times from doing each cave just once!
It you put them on aggressive and perch em on your shoulder, they warn you of any danger with a scream. Usually it’s a diplo or a compy. If it weren’t for my dimo I would’ve died hundreds of times, he once yelled so I left and the next day i went back and say a giga killing a pack of raptors.
I tamed a lvl 15 female one and named it Nova and she was really good. She killed a whole pack of lvl 20 carbonemys without taking any damage and I didn’t do anything except stand there and watch in shock and awe. This is a MUST tame for everyone who reads this. I was only lvl 10 at the time I tamed it and now I’m lvl 40 and this creature has never failed to impress me.
Tame every one of these you see regardless of level. Up only melee and maybe some health. Once you have 20-30 whistle for them to follow you and attack your target. Hit a rex, bronto, or literally anything that can die once and watch as your hurricane of teeth tears it apart.