Yes I know there are WereWolves but I have the monster manual and there are Catfolk in the game. There are feline characters in DnD but they are called Tabaxi. It would be interesting to have a canine race to play as.
I would say some of the Canine races could have special scenes.
Wolves- +Strength and +Con and Low-light vision
Dogs- +Inteligence and +Wisdom with +perception
Fox- +Dex and +Charisma and +acrobatics
This is what I can tell they would have for the character benefits.
Anyways This is some idea's but I figure to help those that like being a furry in Rp's and at least have a Canine race.