One possibility is that it could show Naruto having a positive impact on every character in the village. For example, he might inspire the younger generation to train harder and follow their dreams. He could also be the one who finally unites all the clans in Konoha through his charisma and understanding nature.
In fanfiction, Naruto is often loved by everyone because of his unwavering determination. He never gives up, no matter how tough the situation is. This trait is inspiring and makes other characters in the fanfiction world respect and love him.
One possible fanfiction could be about Naruto's heroic deeds finally making the entire Konoha truly love and accept him unconditionally. For example, after saving the village multiple times from powerful enemies, the villagers start to see him not just as the container of the Nine - Tails, but as a true hero. They hold grand celebrations in his honor and every citizen looks up to him with pride.
They could start by showing small acts of kindness from Naruto that gradually earn him the love of the people. For instance, helping an old lady carry groceries or teaching the academy students some basic ninja skills for free.
His unique jutsu. Naruto has some amazing and powerful jutsu in the fanfiction world that make him stand out. Everyone is in awe of his skills, which is one of the reasons for his popularity.
Well, it could start with some kind of dark magic or forbidden jutsu being used on Naruto to turn him into a human puppet. His friends would then be faced with the challenge of trying to save him. The fanfiction could explore how Naruto's personality changes while being a puppet. He might be more robotic in his actions at first, but then as the story progresses, his true self could start to break through the puppet - like state. It could also show how the people around him react to this new form of Naruto, with some being horrified and others determined to bring him back.
It could be really exciting. Naruto might have some vampire - like abilities on top of his ninja abilities. For example, he could have enhanced speed and strength, and maybe the ability to heal quickly like vampires do in some stories.
It could be really cool. Naruto would probably be in awe of Kirito's sword skills. He might try to learn some virtual - world - inspired moves in his ninja training. And he could be constantly talking about Kirito's adventures to his friends in Konoha. There could also be a plot where Naruto somehow gets to enter a virtual world like Sword Art Online and has to use his ninja skills along with what he's learned from Kirito to survive and complete quests.
It would be really strange and interesting. Maybe Naruto's ninjutsu would mix with Wendy's dragon slayer magic in the story. For example, Naruto could teach Wendy some unique chakra control techniques that she could use to enhance her magic. The story could also explore how Naruto deals with the Fairy Tail guild and its members, as he is now related to Wendy.
In such a fanfiction, the story could start with Naruto somehow being transported to Weiss' world or vice versa. Since Naruto is known for his strong sense of loyalty and friendship, he might initially be confused by Weiss' more complex family and social relationships. As for their abilities, Naruto could teach Weiss some of his ninja tricks, and Weiss could introduce Naruto to the power of magic. There could also be a plot where they have to work together to face a common enemy that threatens both their worlds.
It could be really interesting. Naruto, with his own unorthodox ninja skills and experiences, would bring a new energy to the academy. He might teach the students some of his signature moves, like the Rasengan, in a more hands - on and exciting way compared to traditional instructors. And his tales of facing powerful enemies would inspire the students to be brave and never give up.