chow/GSD or maybe Shar Pei/GSD. The ears look like they could be Shar Pei ish. They eyes are chow (or maybe SP) The long muzzle and coat colour could come from GSD.
The thing with guess the breed, is that unless both parents were pure, anyones guess is good. I have met some cross bred litter where the pups, when grown, looked nothing a like. It was hard to believe they were even related, let alone littermates.
Cute dog though.