There is no absolute "best" answer when it comes to choosing a little black cat breed, because each cat has its own unique charm and personality. Here are some popular little black cat breeds, each with its own unique characteristics and charm:

Mumbai Cat: Known as the "little panther", its coat is black and shiny, like patent leather, and its hair texture is as smooth as silk. They are smart, affectionate, and easy to train, but may shed more heavily.

British short-haired black cat: larger in size, with longer hair, independent in character but very kind and friendly. British shorthair cats are also loved by many for their elegance and steady character.

American short-haired black cat: has a flatter face, slender body, lively, kind and friendly personality. American shorthair cats have won the love of many cat owners for their strong physique and practical character.

Persian black cat: The hair is very long and soft and smooth. It has a quiet personality and likes to be alone, but it is also very friendly. Persian cats’ gorgeous long coat and elegant demeanor make them a favorite of many.