Definitely the popular jock. In fanfiction, they can be more than just a sports - loving stereotype. Sometimes they have hidden depths, like a love for art or a struggle with family expectations. The school's outcast is also very interesting. They have a different perspective on the high school world, and when they start to interact more with the mainstream characters, it can create some really great storylines.
The rebel character is often really interesting. They usually break the rules and have a unique style. They can bring a sense of excitement and unpredictability to the story. Another interesting character is the shy nerd. Their journey of coming out of their shell and finding their place in the high - energy high school environment can be really engaging.
The over - achieving student council president can be a fascinating character. They are often trying to balance their leadership role with their own personal life and desires. And let's not forget the quirky teacher. In fanfiction, they can be mentors or even friends to the students, and their off - beat teaching methods or personal backstories can add a lot of flavor to the story.