When it comes to reading and writing my favorite story type is the one in which the protagonist must confront himself. Some sort of inner conflict causes the main character to engage in a battle in these types of stories. These are the ones where a misunderstood character rises to the challenges of his life.
Weaknesses are clear from the beginning and the protagonist must overcome the main obstacles of maturity or self-doubt in order to be the hero of their own story.
I love reading the tales penned by authors like Frederick Backman, Mindy McGinnis, Emery Lord, JD Salinger, Markus Zusak, and Kiera Cass to name a few.