Danzo could be a great antagonist in this 'naruto highschool au fanfiction'. He could be the strict school principal who enforces very strict rules and has a hidden agenda. He might not like Naruto's free - spirited nature and try to expel him. Also, Kabuto could be a student who is under Danzo's influence and causes trouble for Naruto and his friends.
One idea could be Naruto being the class clown who is secretly a really talented artist. Another could be a love triangle between Naruto, Sasuke and Sakura in high school, with Naruto trying to win Sakura's heart while Sasuke is the brooding, mysterious rival. Maybe there's a big school competition and Naruto has to lead his team to victory against all odds.
One great 'Female Naruto Shikamaru AU' fanfiction is 'The New Path'. In this story, the female Naruto has a completely different dynamic with Shikamaru. It explores how their relationship might develop in an alternate universe where Naruto is female. The characterizations are really well - done, staying true to the original personalities while also adding new twists due to the gender change.
I think Moon could be a great main character. She's independent and strong - willed. In the high school au, she could be the one who challenges the traditional Pokémon training methods at school. Then there's Sun, who could be her rival or partner, depending on how the story goes. There could also be some original characters created specifically for this fanfiction. For example, a new student from a far - off region who has unique Pokémon from places not seen in the original Sun and Moon games, adding a fresh perspective to the high school's Pokémon scene.
He could meet an AU version of Hinata who is more assertive and outgoing. Maybe she's a powerful ninja in her own right and not as shy as in the original story.
One idea could be that the main character is a new student at the high school in the Alola region. They discover a secret Pokémon club where students train their Pokémon for unique battles. Another could be a story about a rivalry between two students over who will be the top Pokémon trainer in the school. Maybe one has a team of Sun - based Pokémon and the other of Moon - based Pokémon.
One possibility is that Naruto enters an AU where chakra doesn't exist. Instead, there are other forms of power. He would have to learn how to use this new power from scratch. Also, the relationships between different ninja clans could be very different. Naruto might end up making new alliances and enemies based on this new dynamic. This could be a great opportunity for character development as he faces challenges that are completely different from what he's used to in his original world.
Naruto could be a tech geek in a modern AU, working on the latest software developments. Hinata might be a fashion designer. They could meet at a tech - fashion event where Naruto is presenting some new wearable tech and Hinata is looking for inspiration for her new collection. Their relationship would be a blend of two different worlds, with Naruto being amazed by Hinata's creativity in fashion and Hinata being interested in Naruto's technological prowess.
Sasuke could still be an antagonist in a way. Maybe in this AU, he's more dismissive of the female Naruto because of his own ideas about strength and gender. He might see her as weak at first and that could create a lot of tension between them.