Where are you located?

Your location and the dogs who roam around your area are a major factor. For example, a Basenji mix would not be uncommon here. But I rarely suggest Basenji mix to other folks because the fact remains that they are fairly rare. The chances of the dog being Basenji is extremely low.

Same thing with Tibbies. Tibbies are pretty rare. Your pup definitely has a Tibbie-like face, what with the soft expression, but those eyes and expression are highly indicative of a Welsh Corgi. Btw, I mean Pembroke, not Cardigan in my first post. Cardigan are less common than Pembroke and Pembrokes can be born with tails.