paragirl
Zooville Settler
Measure yourself from your knee to your ass when you're on all fours, then research the average height measurements of the breeds you're interested in as well as the hindquarters to get an idea if he will struggle to stay stable behind you or if he may be too awkwardly tall. Just my two cents.I care more about the weight and size of the dog that will be more compatible with me in the doggy style position
Also keep in mind temperament obviously, but ease of training. I had my boys professionally obedience trained and that helped tremendously. In the end it's your choice, short hair, long hair, muscular, fit (size), etc.