When tranqing. Place 5 or more large bear traps in a row between you and the rhino. Then stand behind the traps with the traps between you and the rhino and shot it. The rhino will charge and get stuck in the bear trap for 10 seconds, followed by the next and so forth.
Just build a small 3x3 taming pen with stairs leading in from the outside then hit it with a tranq dart or arrow and jump on and argy and repeat until it’s in the pen then just keep hitting it with tranqs
When KOing just run in circles filling it with tranq arrows or darts(high level) this is the way to cheese this Dino’s taming. Even someone that just got into a world with good movement speed could do it easy. And the Dino’s are super op when fully charged. This will help ALOT :)