About this pet

I am trying to find a loving home for my 2 year old Great Dane Thor. He is utd on his rabies vaccine. He is great with people and kids, but is dog aggressive, which is why we have to find a new home for him. He will need to go to a home where he will be the only dog. He is not neutered, we were told to wait until he is 3 or 4 before doing that. He is crate trained and a big cuddle bug.