Is there a muzzle to use for a short nosed/pug nosed dog to help with barking?

I don't recommend a muzzle for barking. If the muzzle is tight enough to restrict barking it's probably a health hazard for the dog, especially a pug nosed dog. They can overheat if you prohibit their ability to open their mouth.

I would instead use a bark collar at times you do not want barking and leave it off the rest of the time.

Cindy Rhodes