Naruto's experience in handling loss and grief can be of great value to Aang. Both have lost important people in their lives. Naruto can show Aang how to turn that pain into strength. By sharing his own journey of dealing with the death of his loved ones and still moving forward, Naruto can help Aang not be consumed by his own losses and instead use them to fuel his growth as the Avatar.
Well, one possible plot could be that Naruto uses his shadow clone jutsu to create multiple clones to help Aang with his airbending training. Naruto's clones can act as moving targets or opponents for Aang to practice his dodging and offensive airbending skills on.
One could be Ozai from Aang's world. He might be even more powerful in this fanfiction and Naruto has to step in to help Aang deal with him. Naruto's unique skills and abilities would be crucial in countering Ozai's firebending.
Well, one possibility could be that Naruto, with his years of experience, teaches Aang some advanced combat techniques. Maybe Naruto shows Aang how to better use the airbending in a more strategic way during battles. For example, Naruto might teach Aang how to combine airbending with quick movements like his own shadow clone jutsu - using clones to create distractions while Aang attacks from unexpected angles with his airbending.
A 'naruto vs jigen fanfic' could be really interesting. Naruto is known for his never - give - up attitude. He would likely start the fight with his usual bravado and confidence. Jigen, being a more mysterious and powerful opponent, would probably initially have the upper hand. But Naruto's ability to adapt in battle is remarkable. He could analyze Jigen's fighting style during the fight and come up with new strategies. The fanfic could also introduce new elements like a power - up for Naruto or a hidden ability of Jigen that changes the course of the battle.
I think Hinata could be an ally. She has always been in love with Naruto and would not stand by while he is in danger from Dark Naruto. Additionally, Shikamaru is smart and strategic. He might see the threat of Dark Naruto to the village and decide to assist Naruto, using his intelligence to come up with battle plans.
He could meet his future self. It would be an interesting encounter as he could learn from his future experiences and wisdom. Or he might meet people who have studied his past adventures and see himself through their eyes.
Well, it could be about a dark version of Naruto having different goals and values from the original Naruto. Maybe the black Naruto wants to take over the Hidden Leaf Village by any means, while the real Naruto tries to stop him to protect his home and friends.
He might start by observing. Aang is a curious person, so he'd likely watch how people live, how they interact with technology. He may also try to find other benders to learn about any new developments in bending. And he'd probably use his kind heart to make friends easily in this new future environment.
In fanfiction, the Rinnegan is often depicted as more powerful than the Sharingan in many ways. The Rinnegan has abilities like the Six Paths techniques which can be extremely overpowered. For example, it can allow the user to control gravity, summon large creatures, and even revive the dead. While the Sharingan has its own set of cool abilities like predicting movements and casting genjutsu, it seems limited in comparison when it comes to the grand scale of power shown by the Rinnegan in most fanfictions.