Suggestion 1: Small animals name each other. Your satsuma is a dog, which can be called penguin, Niuniu and so on. . .
Suggestion 2: Use onomatopoeic words for names, such as "punk" and "oops". . .
Suggestion 3: use fruit as the name, which can be called "fruit" and "grape" . .
Suggestion 4: Give the dog a name according to its own characteristics. For example, if the eyes are bigger than other dogs, it is called "big eyes (children)" (children's pronunciation).
I don't know if it will help you, but I still insist that you give your dog a name that suits your heart!