Sweet pitty puppy

I just adopted this lovely boy, but unfortunately my other dog isn’t taking to him very well.
I just don’t want him to be in an unsafe situation.
He’s potty trained, loves walks lol, he has all of his shots and is neutered.
He’s wonderful around children, he is also amazing around other dogs.
He’s not very large and is a huge cuddler.
We named him Soto but I’m sure you could change it , he hasn’t taken to it much lol.
I’m asking a small rehoming fee just to make sure he goes to a serious home.