erictccwell not a pet but he does follow you around like how dantdm does it. well sorta It rides an invisible wolf on it, you tame him with bones and follows you around.
you need a command block for it but its worth it, put him in a lab to look awesome. it can stay as well
TRY IT!!!!
erictcc
darkknight3227
galbby5
deadpoolbadhair