Naruto's relationship with the villagers would change significantly. Some villagers who were previously skeptical or even mean to Naruto would now be in fear or admiration. The children in the village would look up to him even more, seeing him as a superhero. However, Naruto would still be the same kind - hearted person, and he would use his new powers to earn the respect and love of those who once doubted him, and strengthen the bonds with those who already cared for him.
With his friends like Sakura and Kakashi, Naruto would become an even more reliable protector. Sakura would be in awe of his new powers at first, but then she would start to worry about Naruto getting too cocky or reckless with them. Kakashi, on the other hand, would be more cautious and would try to guide Naruto in using these powers responsibly, much like he did with Naruto's ninja training.
With Kakashi, Naruto's fire powers would likely lead to new training regimes. Kakashi would have to adjust his teaching methods to help Naruto control and enhance his fire - based jutsu, which could strengthen their bond as teacher and student.
With his friends in the Hidden Leaf Village, some might be scared of him at first. But as Naruto shows that he can control his death powers for good, they would gradually accept him again. For example, Sakura might initially be hesitant around Naruto, but when she sees him using the powers to protect the village, she would start to trust him more.
With All Might, Izuku's relationship could shift. All Might would have to guide Izuku in a different way since Tatsumaki powers are not like One For All. He would need to learn new ways to train Izuku and also make sure Izuku doesn't lose his original heroic spirit while using these new powers.
His relationship with his teachers would also be different. Iruka would be extremely proud but also a bit worried about Naruto getting too cocky with his powers. Kakashi, on the other hand, would be more focused on training Naruto to control and master these powers. Naruto's new powers could also attract the attention of other ninja villages. This would put pressure on his relationships with the people in his own village as they might see him as a potential target or a valuable asset. Some might be jealous, while others would be more eager to be his ally.
His friends in Konoha like Shikamaru and Kiba would see Naruto in a new light. They might rely on him more for protection, but also feel a bit of distance because of his elevated status. Naruto would have to work hard to maintain his old friendships and show them that he's still the same person deep down.
His relationship with Sasuke would likely be very different. Since Sasuke has also had experiences with the Rinnegan, they might now have a new level of understanding between them. They could train together to master the powers of the Rinnegan or compare notes on how to use its abilities.
With Kakashi, Naruto's relationship would also shift. Kakashi has had experience with the Sharingan and knows about powerful dojutsu. He would be both amazed and a bit worried about Naruto having the Rinnegan. He might try to mentor Naruto more intensively to make sure he uses it for good and doesn't let the power corrupt him. Naruto would look up to Kakashi even more as he tries to learn about his new power from Kakashi's knowledge.
His relationship with Sasuke would be really interesting. Instead of Sasuke being the only one with the Sharingan, Naruto now has it too. Sasuke might feel a mix of envy and camaraderie. Envy because Naruto has something that was so much a part of his identity, and camaraderie because they now share a powerful ability.
His friends would be very cautious at first. For example, Sasuke might be more on guard, seeing Naruto as a potential threat. However, true friends like Shikamaru might try to understand what's going on and find a way to help Naruto control his new powers.
If Naruto had Superman's powers in fanfiction, it would change everything. His village would be almost invincible. With Superman - like powers, Naruto could fly around and keep an eye on all the hidden villages, preventing any surprise attacks. His super strength could be used to rebuild the village in no time after any destruction. Also, his x - ray vision could be used for various things like finding hidden traps or enemies. The power dynamic in the ninja world would shift completely, and Naruto would become an even greater legend.