A short cropped cut similar from all sides.
You can make them carrying their long hair easily in this way.
Box braids is a suitable hairstyle for little black girls with long and thick hair.
Simple side braid
This will be a side braided look and can be held for all occasions.
Long thick hair suits well on little black girls which will be tied up in a ponytail.
Side parted look
Simple short cropped hairstyle in a side-parted way.
Much messy braid collided with each other in a short falling makes her look cute.
Puffed up look on a long thick hair which is really easy to do.
Twists and turns
Not exactly a curly hair but many twist and turns covering the hair.
This will make her adopt a much more stylish look.