My name is Charlie!

Need to rehome my recently acquired dog Charlie. He is not working out with our 2 yr. old Boston Terrier; she likes to play with him but maybe because of his size she has a hard time with him. He is not aggressive at all he's a big pup 5 months old with a lot of energy and very strong. Would be best with larger dogs. He has calmed down somewhat from when we got him, but not really enough for us. He's a really sweet boy and eager to learn. With the right owner I believe he would be a wonderful dog. He is in need of a good groom and toenail clip. He is not neutered and the last owner said he only had a parvo vaccination. In just a few days he has already learned to sit. He is very smart and would do well with someone who could work with him. Would prefer he had a fenced in yard. I want the best possible solution for him.