Another storyline could involve the blind Chunin's relationships within the village. He may face discrimination or misunderstanding from some villagers who doubt his abilities as a ninja because of his blindness. However, through his determination and kindness, he gradually wins them over.
Perhaps in this fanfiction, Naruto is fatally injured in a fight during the Chunin Exams. He might sacrifice himself to save one of his friends. This would cause a great outpouring of grief from his friends and mentors. The village would also be in shock, and there could be a change in the power dynamics as his absence leaves a void.
One storyline could be Naruto gradually losing his sight over time but hiding it because he doesn't want to worry his friends or seem weak. He could struggle with simple tasks like reading scrolls or finding his way around Konoha without making it obvious.
One possible storyline could be that Naruto somehow gets transported to the world where Gwynevere exists. He might initially be confused by the new world's magic and different rules. But with his ninja skills and determination, he could start to make a name for himself. He could team up with Gwynevere to fight against a common enemy, like an evil sorcerer who is threatening to take over the land. Naruto's ability to make friends easily could also lead to him befriending many of the local characters, and through his positive influence, bring about a change in the way things are done in that world.
One possible storyline could be that Ryan Blind is a new neighbor who moves into the area. The main characters initially misjudge him because of his blindness, but as they get to know him, they discover his amazing musical talent. And he then becomes part of their group, and they help him pursue his dreams of becoming a famous musician.
One possible plotline could be Naruto losing his sight in a battle but then discovers his latent swordsmanship skills. He might train under a master swordsman who helps him adapt to his blindness. Another could be that Naruto is born blind but has an extraordinary sense of hearing and smell which he uses to become a great swordsman. He could face discrimination from some in the ninja world at first because of his disability, but prove them wrong with his skills.
A blind Chunin can contribute to a mission through their enhanced non - visual senses. For instance, they can sense approaching enemies through vibrations in the ground. If the mission is a stealth one, they can use their acute hearing to detect any potential threats or traps.
In a fanfiction of Naruto dying of a sickness, perhaps the sickness is a result of overusing his chakra during a great battle. His body starts to break down, and he begins to experience weakness and fainting spells. Hinata, being his wife, is desperate to find a way to save him. She might turn to her own clan's secrets in hopes of finding a cure. At the same time, Naruto tries to train Boruto in what little time he has left, passing on his values and skills, while also coming to terms with the fact that he won't be there to see his son grow up fully.
One possible storyline could be Naruto being transported into the Strike Witches universe. He might initially be confused by the different world with its unique magic and technology. He could then use his ninja skills, like his shadow clone jutsu, in combat against the Neuroi. Another storyline could involve Naruto teaching the Strike Witches some of his ninja training techniques to enhance their physical abilities. Maybe he forms a bond with a particular Witch and they go on missions together, combining their powers in unexpected ways.
Another storyline could be that Naruto and Hinata are trying to raise their family while Naruto is Hokage. Hinata might be pregnant, and Naruto is worried about balancing his duties as Hokage with being a good father. He could get advice from his old friends like Shikamaru on how to manage his time better.
One possible storyline could be that Hanabi is captured by a group of rogue ninjas. Naruto, being the hero he is, hears about it and immediately sets out to rescue her. He uses his signature jutsus like the Rasengan to fight off the captors and finally saves Hanabi.