Naruto might be a storyteller. He has many experiences and a vivid imagination. He could sit in the village square and tell tales of heroism (not necessarily ninja - related) to the children, passing on values like courage and friendship through his stories.
He might become a simple farmer. Just imagine Naruto living a peaceful life in the outskirts of the village, growing crops and taking care of livestock. It would be a far cry from his ninja adventures, but he could find contentment in the simplicity of nature and the fruits of his own labor.
He could develop cooking skills. Naruto loves to eat, so it's possible that he would focus on learning how to cook delicious meals. He might even open his own little restaurant in the village, serving up his favorite dishes and becoming known for his unique recipes.
One possible reason could be the fear of losing his loved ones. In the original Naruto story, many ninjas sacrifice a lot, including their lives. Naruto might have seen this and decided he doesn't want to put himself in such a position.
One possible reason could be that he has seen the darker side of the ninja world. Maybe he witnessed too much death and destruction during his missions and decided he no longer wanted to be part of it. Another reason might be that he has other dreams that he realizes are more important to him than being a ninja. For example, he could have a passion for art or music that he wants to pursue instead.
One possible storyline could be that Naruto decides to focus on traveling the world instead of becoming Hokage. He could use his skills to help people on a more individual basis across different villages. He might learn new jutsu from various shinobi cultures and become a sort of wandering hero.
He might become a simple farmer. Without the ninja path, Naruto could focus on growing crops and living a peaceful rural life. He would be away from the battles and politics of the ninja world, and just enjoy the simple pleasures of nature.
One idea could be that Naruto discovers a new passion for art and decides to pursue that instead of being a ninja. He could start by sketching the landscapes he sees during his travels, and eventually move on to more complex paintings. This would lead to him leaving the ninja world behind as he focuses on his newfound love for art.
Hyourinmaru could be a key to unlocking a hidden power within a character. For instance, a young ninja discovers an old scroll that mentions Hyourinmaru. As they study it, they find that it holds the secret to a new form of chakra control related to ice. This then gives them an edge in combat and in their journey to become a stronger ninja.
Maybe Naruto teams up with some non - ninja characters. Together, they could come up with new ways to solve problems in the village that don't require ninja skills. As a result, he gradually changes the view of the village towards non - ninja activities, which is a significant development in the fanfiction.
He could play the role of a disruptor. Just like his character in his own universe, he would disrupt the existing power dynamics in Naruto. His overpowered abilities would make him a force to be reckoned with, whether he's on the side of good or bad.