The best brush to use for African American hair is an all natural boar bristle brush. The natural bristles are better for working natural oils and products through the hair. This rush can be used for other hair types as well as it can help distribute the oils throughout the hair better.
A wide-tooth comb is also ideal for African American hair, especially if it is curly. A wide tooth comb can gently detangle the hair without pulling on it and breaking it.