Perhaps in this fanfiction, Naruto is in a wheelchair because of a curse or some kind of poison. His friends rally around him to find a cure. Meanwhile, he discovers new aspects of his ninja way, like focusing on mental strength and strategy more. He might also have to face some villains who underestimate him because of his disability.
In this Naruto in a wheelchair fanfiction, it could be that Naruto sacrificed his mobility to save the village from a great threat. Now, he becomes a symbol of sacrifice. He uses his charisma to bring the village together in new ways. He could also start a support group for injured ninjas, sharing his own experiences and motivating them to keep going.
A possible plot could be that Naruto's chakra system is damaged, which leads to his legs being paralyzed and him using a wheelchair. He then embarks on a journey to find a cure, facing various challenges along the way. This could involve him meeting new characters who either help or hinder his quest.
Perhaps it could focus on how the other characters interact with Aerith in her wheelchair - bound state. Her friends could learn to see her not as someone who is 'crippled' but as a strong individual. They might help her adapt to her new situation, and together they could face new enemies or obstacles. It could be a story of friendship and support.
In a Naruto and Derieri fanfiction, a possible storyline could be that Derieri is mistaken for an enemy in the Naruto universe. Naruto, being the one to see her potential for good, tries to convince others that she is not a threat. As they try to clear her name, they uncover a conspiracy that threatens both their worlds. This would involve a lot of mystery - solving and action as they race against time to stop the conspiracy.
One possible storyline could be that Naruto is chosen as a temporary Kazekage due to a threat that requires his unique skills. He then has to deal with internal conflicts within the Sand village while also facing external enemies. Another could be that there is some kind of prophecy that only Naruto can fulfill as Kazekage to save both Konoha and Suna.
A storyline could involve Naruto using his newfound Nara abilities to solve a mystery in the village. Maybe there's a strange phenomenon that's related to shadow - based jutsu, and Naruto, with his understanding of both Uzumaki and Nara powers, is the only one who can figure it out. He'd have to team up with other characters, and in the process, there would be a lot of character development and interesting interactions.
Another storyline might be that Millet is a secret organization in the Naruto world. Naruto discovers that this organization has been pulling the strings behind some of the conflicts. He has to infiltrate it and expose their true motives. This would be a great opportunity for Naruto to use his stealth and combat skills, as well as his ability to make friends and allies within the organization to bring it down from the inside.
One possible storyline could be Naruto as an elf trying to fit into the ninja world while still having his elf heritage. He might face discrimination from some who don't understand his different nature.
One idea could be Naruto getting injured during a major battle and having to use a wheelchair while he recovers. His friends could help him adapt and he might find new ways to train in his restricted state.
One possible storyline could be that Naruto's child in the fanfiction inherits some of his unique powers, like the Nine - Tails' chakra. And they have to learn to control it, with Naruto guiding them. Another could be that the child gets into trouble in the ninja world and Naruto has to use his influence and skills to protect them.
One possible storyline could be how the Hidden Leaf Village copes with his death. Maybe there are power struggles as different clans vie for leadership in the absence of Naruto's unifying presence.