(The three famous ones at least)

Based on their writing styles and Charlotte Brontė's descriptions of her two sisters, I tentatively consider Emily to have been an INFp (she is described as being removed from the world and impractical). The description of Anne is somewhat similar, though less so.

Charlotte seemed like a XXXj type in comparison, although I shouldn't really use such notation. She seemed quite level-headed and stern. I see that the character of Jane Eyre has been typed as INFj on this forum, and that was supposed to be a representation of Charlotte, but I don't have any strong opinion on the matter!