BONES would be my pick, short of them I would settle for Dreamwork's 2D animation affiliates the South Korean company Studio Mir
BONES because the studio has a good history of working with canine and animal characters as they were behind the 2003 series Wolf's Rain.
Studio Mir because they are consistently good across the "fantasy" genera as they have been responsible for Avatar: Legend of Korra and more recently Voltorn: The Legendary Defenders.