A great fanfiction could be set in an alternate universe where Hinata is the Hokage instead of Naruto. Naruto then has to support her in her new role, and their relationship takes on a whole new dynamic. This would flip the traditional roles and allow for some really interesting character development and plot twists.
One interesting fanfiction could be about Hinata's journey to become stronger to stand beside Naruto. In this kind of story, Hinata might train secretly and then surprise Naruto with her new skills. Another could be a story where Hinata and Naruto get lost in a mysterious forest together and have to rely on each other to find their way out. It would be full of their cute interactions and Hinata's shy but determined nature.
Hinata can develop in fanfictions by exploring her family's past more deeply. This knowledge could give her more motivation to prove herself. For instance, if she discovers a hidden power within her family's history, she could use it to become a more respected and powerful ninja in the village, all while her feelings for Naruto continue to be a driving force in her life.
There might be a fanfiction where Hinata discovers a new 'drug' - like substance in the Hidden Leaf's forest that has unique chakra - enhancing properties. She then has to decide whether to share it with Naruto and the rest of the village or keep it a secret for safety reasons. It could involve a lot of moral dilemmas and character development.
One interesting fanfiction could be about Hinata and Sakura teaming up for a special mission. In this story, they might start off with some misunderstandings due to their different personalities but then gradually learn to work together and become great friends. They could combine their unique skills, Hinata's Gentle Fist and Sakura's medical ninjutsu and brute strength, to overcome the challenges in the mission.
One interesting 'Naruto Rescue Hinata' fanfiction could be where Naruto has to use his new and powerful jutsu to save Hinata from a group of rogue ninjas. He battles through various traps and enemies, relying on his determination and love for Hinata.
One interesting fanfiction could be about Hinata and Ino teaming up for a mission. They might start off with some initial misunderstandings due to their different personalities, but as the mission progresses, they learn to appreciate each other's strengths. For example, Hinata's calm and observant nature could complement Ino's more outspoken and confident attitude.
One interesting fanfiction could be about Neji training Hinata in a new and unique way that helps her unlock a hidden power. In this fanfic, Neji might use his own experiences and skills to push Hinata beyond her limits. It could also involve Naruto cheering Hinata on from the sidelines, adding a touch of their relationship dynamic to the story.
One popular one might be where Hinata's stalking leads to some comical misunderstandings between her and Naruto. For example, she might accidentally get caught while following him to a training session and Naruto thinks she's there for some other reason.
One interesting fanfiction could be about Hinata's growth in her ninja skills while also exploring her relationship with Naruto in more depth. For example, a story where they go on a joint mission that no one else could handle and it deepens their bond.
Another fanfiction idea could be Hinata's role in post - war Konoha. She could be involved in rebuilding efforts, using her skills in medicine or her diplomatic skills (if we assume she has developed some) to help the village recover. This could also involve her interactions with different clans and how she helps to bridge gaps between them.
One interesting plotline could be Hinata becoming a powerful ninja in her own right and protecting Naruto instead of the other way around. For example, she could master a new and unique jutsu that saves Naruto from a powerful enemy.