I have a three year old rotty and I need to give him a better home he's not friendly is there a animal shelter I could give him to

Yes but you need to call them to discuss. If not here there are others

Try PA SPAC in Philadelphia, they have Animal Behaviorists who can work with the dog, so that he can be adopted more easily. IS your dog neutered? That could be part of the problem.

If you are looking to surrender him you would need to contact the shelter directly.

I volunteer there on weekends, we. Are a no kill. Maybe just needs training .