I’ve dealt with different breeds my family/friends have had such as Doberman’s, German Shepherd’s/mixes, Mastiff’s, Belgian Malinois mix, shitzu mixes, and boxers. I’ve fed/watered them, taken them out to use that bathroom, and played with them. The Belgian Malinois mix I currently have is a rescue puppy, whose about 6 months old and I’ve done a lot of training with her and taken her to training. I’ve also done the same with our 2 years old German Shepherd also. I don’t mind any dog, I do prefer bigger breeds though.