Well , we had baby bunnies , all kinds of critters in the spring around here and none of the GSDs killed them , they we always called off and left them alone . One of my husbands PO dogs ,while on the job, was attacked by a cat , he didn't kill it , just shook it off and kept on the scent/search. He could have killed it , but didn't. Not saying they wouldn't kill something , its always possible , especially when a animal flees from them , its going to be game on , thats just being a dog. Later we found out that this cat was the neighborhood crazy cat and loved to attack dogs , lol.. I haven't seen our dogs set out to kill something , ever. But that one dog in training was a first. The danger is always there.They are more curious then anything , but when a animal flees , it awakens their natural chase instinct. Some dogs have a stronger will to chase and destroy then others do. If I were you , I would look for a breed that doesn't have the higher prey drive , like hounds and Pointers. GSDs since they are one of the herding breeds need the right training and socialization. Any breed/mix can be dangerous , I know , but avoiding the main ones might be a good start. Getting a mix breed can be good or bad , you just never know.
Anyways , I don't know of any breeders in your surrounding areas , but you can go to the AKC website and take a look there. They can tell you the closest ones to you . But just remember , if you can't see and meet the parents , being breed surveyed is a major plus , opt to go someplace else. JMHO.