I looked up pictures of both breeds on Google and they look a lot alike. Look them up yourself and see what you think. He's adorable whatever he is!!! 💗
Your dog is delightful. Why embarrass it by giving it a trendy name? (Dogs have their pride, too.) If it's cross-bred it's a bitzer, but don't let that turn you off. Pure-bred dogs are often so closely interrelated that they develop congenital weaknesses ... Much like the European royal families.
your dog is really cute so it doesn't matter what breed it is :D