In some fanfics, Naruto might team up with unexpected characters to defeat Pain. For example, he could join forces with Orochimaru. Orochimaru, with his knowledge of jutsus and dark arts, and Naruto, with his brute strength and positive energy, create a unique combination that outsmarts Pain's abilities.
One unlikely ally could be Zetsu. Zetsu is usually seen as a villain, but in a fanfic, he could have his own motives for helping Naruto defeat Pain. Maybe he wants to disrupt the Akatsuki's plans from the inside and sees Naruto as a useful tool for that.
One creative plot could be that Peter gets help from an unexpected source. For instance, he teams up with an alien race that has technology that can counter Iron Man's. The alien tech could be something that neutralizes the repulsor rays or disrupts the communication systems in the suit. This would give Peter an upper hand in the fight.
One interesting plot could be that the world is on the verge of destruction due to a natural imbalance. Naruto, being the hero, has to figure out a way to restore this balance. He might have to journey to the elemental nations' spiritual cores and perform some kind of ritual. In this fanfic, he could also have some new powers that are related to nature itself, like the ability to communicate with all living things to understand what went wrong with the balance and how to fix it.
A common plot is Naruto using his friendship bonds to gain an edge. For example, in many fanfics, his bond with Sasuke becomes a key factor. Sasuke may return to Konoha and fight alongside Naruto against the Akatsuki. Another popular plot is Naruto unlocking some new, super - powerful form. Maybe a combination of all his different power - ups throughout the series that makes him nearly invincible against the Akatsuki.
Well, in a fanfic, a really cool plot for Naruto's teleportation jutsu could be that he discovers a new form of the jutsu that allows him to teleport groups of people instead of just himself. This could lead to some amazing rescue missions. Or, perhaps he teleports to a hidden village that no one knew existed and has to deal with their unique culture and jutsu. Also, he might use the jutsu to teleport objects instead of just himself, which could open up all kinds of strategic possibilities in battles.
One creative plot is when Naruto characters are reimagined as Jedi or Sith in the Star Wars Clone Wars setting. It gives a whole new perspective on their powers. Another is having the Clone Wars' droids in the Naruto world, causing chaos with their advanced technology.
A really creative plot is the one where Naruto and Tatsumaki are in a world where their powers are swapped. Naruto has to deal with Tatsumaki's psychic powers and her reputation in her world, while Tatsumaki has to figure out how to use chakra and live as a ninja. It's full of humorous moments as they struggle to adapt to their new powers, but also shows how they can grow and learn from each other's experiences.
A plot could be that Godzilla's DNA is used in some crazy experiment in the Naruto world and it creates a hybrid creature with ninja abilities. This new being has the strength of Godzilla and the stealth and jutsu skills of a ninja. It would be a very powerful and unpredictable character in the fanfiction.
One possible plot is that Pain targets Hinata to get to Naruto. Since Hinata has a special place in Naruto's heart, Pain might think that by hurting her, he can break Naruto. But Hinata shows great courage and Naruto comes to her rescue.
One creative plot could be that Eevee is a reincarnation of a powerful ninja spirit. Naruto senses this and helps Eevee to unlock its hidden powers. This could involve training sequences where Naruto uses his own ninja training methods on Eevee.