Maybe a fanfiction where a forbidden jutsu backfires and causes widespread carnage in Konoha. Naruto and his friends then have to deal with the aftermath, not just physically rebuilding but also handling the psychological trauma of the villagers. They might discover some long - hidden secrets about the jutsu in the process.
One idea could be that Female Carnage targets Spider Man's loved ones to draw him out. Spider Man then has to use his wits and powers to protect them without getting caught in Carnage's violent traps.
Well, perhaps in the fanfiction, Spider - Man bonds with Carnage to save an innocent person. Let's say Carnage has taken a hostage, and Spider - Man discovers that he can form a temporary bond to influence Carnage's actions. He then uses this bond not only to save the hostage but also to try and reform Carnage in some way. It could also be that the bond is a result of a magical spell gone wrong in the Marvel universe that links their fates together.
One idea could be Carnage taking over a major corporation in the Spectacular Spider - Man universe. Spider - Man then has to figure out how to stop Carnage without causing too much destruction to the company and its employees. Another plot could involve Carnage teaming up with a lesser villain to create chaos, and Spider - Man has to face two foes at once.
One idea could be that Female Carnage has some information about a new super - villain who is planning to destroy the city. Spider - Man has to work with her to get that information, even though he doesn't trust her. Along the way, they start to understand each other's motives and develop a grudging respect.
A plot idea could be that Naruto discovers a new, ancient form of chakra that has been lost for centuries. He then has to train to master this chakra while also dealing with the political implications within the Hidden Leaf Village. Some elders might be against him exploring this new power for fear of the unknown, but Naruto, being Naruto, is determined to master it for the good of the village.
One idea could be that the events of 9/11 somehow influence the Hidden Leaf Village. For example, they might tighten security and Naruto could be part of a new team in charge of protecting the village from potential outside threats inspired by the real - world event. Another plot could involve characters from Naruto trying to understand the concept of such a large - scale tragedy and how they can prevent similar things in their own world.
One interesting plot idea could be a time - travel story. For example, Naruto is sent back in time to the era of the First Hokage. He could use his knowledge of future jutsu and events to change things for the better in the past. Another idea is a story where Naruto discovers a hidden clan within Konoha that has a unique and powerful Kekkei Genkai. He then has to help this clan gain acceptance in the village. A third idea might be a story where Naruto is turned into a different creature, like a cat or a fox, and has to find a way to turn back while still dealing with the normal threats to the village.
One idea could be that Neji discovers a new hidden power within Naruto that he helps Naruto master. This could lead to them having to face a new, powerful enemy together.
One plot idea could be that Naruto somehow gets transported to the world where Darkrai exists. Darkrai, known for its ability to induce nightmares, might initially be seen as a threat. But Naruto, with his never - give - up attitude, tries to understand Darkrai. Maybe he discovers that Darkrai is being hunted by other powerful Pokémon and Naruto decides to protect it. This could lead to an alliance between Naruto and Darkrai against their common enemies.
You could also write about Naruto's family during a time of peace. How they interact with the other families in the village, and how they pass on the values of the ninja way to the next generation. It could include family outings, training sessions that are more about bonding than combat, and the family's role in maintaining the positive atmosphere in the village.