Wonderful!! I agree with Karen on this one. A dog from a GSD rescue would be your best bet. The foster home will know the dog's personality and which one will fit in best with your family. I personally would get a female to complement your male. Opposite sexes should get along better. Be sure to let both dogs know that YOU are alpha. As to fence jumping, yes they can do it. My first GSD, even with hip dysplasia surgery, jumped the four ft. fence in our yard to get into the neighbor's yard because my son was playing there. However, that was the only time in the 10 years that he jumped it.
The GSD breed is intelligent, beautiful, brave and a natural protector. What a wonderful choice and especially a rescue. There's something about a rescue....they really do appreciate the fact that you saved them. My two are fantastic. They are both so loving. Good luck!!
I see that you are located on the Michigan UP. I'll try to get a list of rescues for you. There are some fosters out there that are gorgeous, too. Are you ready to adopt now or how soon in the future?
Save a life, ADOPT!!
Rainbow Bridge Angels: Thor, Shiloh and Killian, Avalanche and Wolf
(RB Gaylord and Bandit, fosters who have touched my heart)