Well, in some 'naruto power of light fanfiction', there might be the idea of Naruto getting a new power related to light that allows him to defeat enemies in a more spectacular way. For example, he could use light-based jutsu to blind opponents or create constructs out of light.
Well, a cool 'Naruto Ring of Power' fanfiction concept could be that the ring was once worn by an ancient and powerful ninja. Naruto finds it and it slowly starts to corrupt him with its power. His friends then have to find a way to save him from the dark influence of the ring while he struggles with the newfound power within himself. This would add a lot of drama and conflict to the story.
Some interesting plot ideas in naruto hidden power fanfiction might include Naruto finding out he has a hidden power that lets him see the past and future of the ninja world. This could help him prevent disasters or find lost secrets. Another idea is that his hidden power is related to chakra absorption and manipulation in a unique way. He could absorb the chakra of his opponents and use it to enhance his own abilities or heal himself. Also, perhaps Naruto has a hidden power that is linked to the spirit world, allowing him to call upon the help of deceased ninja or gain spiritual guidance.
One idea could be Naruto using the Nine - Tails' power to travel to different dimensions and encounter versions of his friends with different personalities. Another could be him training with the Nine - Tails to create new and unique jutsu that no one has ever seen before. Maybe he uses the power to go back in time and change certain events in the ninja world's history for the better.
You could write a fanfiction focusing on the relationship between different races in 'The Rings of Power'. For instance, how elves and humans interacted beyond what was shown in the series. What if there were secret alliances or romances between them? Also, a fanfiction about the magic in the world of 'The Rings of Power' could be really cool. You could expand on how the magic works, create new spells, or explore the limitations of the existing magic system.
One idea could be Naruto discovers a new form of healing power that is linked to his Sage Mode. This power not only heals physical wounds but also emotional traumas. For example, he could use it to heal the rifts between the different ninja clans in the Hidden Leaf Village.
One idea could be that Naruto hides his power to protect his loved ones from being targeted. For example, if his enemies knew his true strength, they might go after Hinata or Iruka. Another could be that he's hiding it as part of a long - term strategy to overthrow a greater evil that is secretly observing the ninja world. Maybe he wants to lull them into a false sense of security before making his big move.
One idea could be an oc who discovers a power ring that has unique powers not seen in the original lore. For example, a power ring that can manipulate time on a small scale.
One idea could be to cross over characters from different anime universes in the Tournament of Power. For example, bring in Naruto characters. They could use their unique jutsu skills in the tournament, adding a whole new dynamic to the battles.
A plot could revolve around a team-up that no one expected. Like a villain and a hero from different universes having to work together in the Tournament of Power. They start off distrusting each other but gradually learn to respect and rely on one another. This could add a whole new layer of drama and character development to the fanfiction.
One idea could be exploring the origin of the 'power of darkness'. Maybe it was a forgotten magic that gets rediscovered by a young protagonist.