Definitely Deku. His journey from being quirkless to one of the most powerful heroes - in - training is inspiring. You can explore more of his self - doubts and how he overcomes them in different scenarios. Bakugo is also a popular choice. His explosive personality and powerful quirk make for great storylines, especially exploring his relationship with Deku further. Uraraka is another great character. Her gravity - defying quirk can be used in unique ways in fanfiction, like in rescue missions or in battles against villains with flying abilities.
Kirishima is a great character for fanfiction. His unwavering determination and his hardening quirk can be the center of stories about friendship and loyalty. You could write about how he stands by his friends no matter what. Nejire Hado is also an interesting character. Her powerful wave - motion quirk can be used to create exciting action scenes. In fanfiction, you can explore her backstory and how she became so powerful. And don't forget about Mineta. While he's a bit of a controversial character, he can be used in humorous or redemptive storylines in fanfiction.
All Might is a character that many like to focus on. His past and his role as a symbol of peace can be delved into more deeply. You could write about his time as a teacher at Sky High and the influence he has on the students. Todoroki is also popular. His dual - natured quirk gives a lot of room for character development. Fanfiction can explore his internal struggle between his two sides more. And then there's Momo Yaoyorozu. Her intelligent and creative use of her quirk makes her an interesting character to write about, whether it's in creating new gadgets or coming up with unique battle strategies.
Definitely Deku. His growth from a timid boy to a powerful hero makes it exciting to imagine his further development as an adult. Bakugo is also a popular choice. His fiery personality and his complex relationship with Deku offer a lot of potential for interesting grown - up storylines.
Tsuyu Asui is often overlooked. She has a really cool quirk with her frog - like abilities. In fanfiction, she could be the main character in a story about amphibious hero training or exploring the swamps and water - based areas that other heroes might avoid.
Sato Rikido is an underrated character. In a fanfiction set during a baking competition at U.A. (as he loves baking), his skills and how his quirk might give him an edge could be explored. Also, Koda Koji, who can communicate with animals. A story about him during a period when the school is facing an animal - related problem would be interesting. It could show his importance and how he uses his quirk to solve the issue.
Hagakure. She's often overlooked because she's invisible, but she could be the star of a really fun fanfiction. Maybe a story where she uses her invisibility in really creative ways to solve mysteries around UA or prank her classmates.
Akko is a very popular character to focus on. She's the main character, full of energy and determination. Her journey to become a great witch provides a lot of material for fanfiction. Another popular one is Diana. She's the top student, so you can explore her backstory, her insecurities behind her perfect facade, and how she interacts with Akko.
Katsuki Bakugo is also a common character. His explosive personality can be interestingly combined with the gamer concept. Maybe a gamer - like Bakugo who is always looking for the next 'level up' in terms of his quirk strength and hero status, constantly challenging others in a competitive, almost game - like way.
Toga is also very popular. Her quirk and her somewhat unhinged personality give a lot of room for creativity. Fanfictions can explore her view of the world and her relationships with other villains in more detail. Maybe even a story about her trying to find a 'normal' life despite her villainous nature.
One idea could be creating a new character who has a unique quirk that is initially seen as useless but turns out to be extremely powerful in a specific situation. For example, a quirk that allows the character to communicate with inanimate objects, and they use this to gain information from the rubble during a big villain attack. Another plot could involve a time - travel element where a character from the present goes back to the era when quirks first emerged and has to deal with the different social and power dynamics. Or perhaps a story where the students of Sky High have to team up with villains to fight a greater common enemy, blurring the lines between good and evil.
Deku is often a popular character in 'My Hero Academia Flame On' fanfiction. His original quirklessness and then his development into a powerful hero make him a great candidate for stories involving new or enhanced flame - based quirks. Bakugo is also popular as his explosive quirk can be easily related to the idea of flames. Fans like to write about him further exploring the power of his explosions in relation to the 'Flame On' concept.
Midoriya Izuku is often a popular character. In godlike fanfictions, he might be given even more powerful versions of his One For All quirk, or he could develop new abilities that make him even more of a force to be reckoned with. Writers love to explore his growth and how he would handle extreme power.