Yes, he's a Dogo.
You may try the Dogo board. DACA Main They do not allow breeder posting, but you can ask general questions. Dogos are not easy dogs to own. They are big, strong, very dominant. They need a strong leader. They are nothing like a APBT. They have more of a mastiff temperament. And in my experience, they can be as dog aggressive, if not more so than an APBT, especially same sex. A running joke is you can find the Dogos at the dog show by following the sounds of growling. The one show I went to, I was petting the Dogo and another male who had already gotten into with in the hotel hallway walked by and he turned to cujo at my hand. Sometimes even dogs that can hunt together can not live together at home and have to be kept separate. They are also horrible about food aggression with other dogs. They also have skin problems, shed like crazy, slow to mature, destructive as puppies, males usually will challenge you once they start hitting maturity (hence the need for a strong owner). Deafness, thyroid, cancer are common issues. You want to make sure the hips/elbows are good on the parents as well.