In naruto kuchiyose fanfiction, an interesting aspect could be the relationships between Naruto and his summoned creatures. For instance, he might form a deeper bond with one of his summons, like the toads. This could lead to the summon having a greater influence on Naruto's growth as a ninja. Additionally, some fanfictions might explore how Naruto's kuchiyose jutsu evolves over time, perhaps allowing him to summon larger and more powerful versions of his usual summons.
One idea could be a fanfic where Naruto discovers a new and powerful summon that no one has ever seen before. This summon could have unique abilities that help Naruto in a crucial battle against a powerful enemy.
Obviously Naruto himself is a very popular character in naruto kuchiyose fanfiction as the main user of the kuchiyose jutsu. Jiraiya is also popular since he taught Naruto about the jutsu. And the toads like Gamabunta are often featured as important characters as well, given their role in Naruto's summoning adventures.
One interesting idea could be the combination of Naruto's ninja skills with mecha technology. For example, Naruto might use his chakra to power up the mecha in unique ways. Another idea could be the new enemies that are created specifically for this mecha - Naruto concept, like robotic shinobi that require different combat strategies compared to normal foes. Also, the design of the mecha Naruto itself can be really cool, perhaps with features inspired by the Nine - Tails.
A great idea for naruto model fanfiction could be a time - travel story. Naruto could go back in time and try to prevent some of the tragedies that happened in the original story. He could also use his future knowledge to change the way he approaches his training and relationships. This would not only give a fresh perspective on the Naruto universe but also allow for a lot of creative plot twists and character development.
One idea could be to have Naruto start his journey with the knowledge he gained in the original series. For example, he could immediately focus on training in new jutsus that he knew were powerful later on. Another idea is to change the way the main characters interact. Maybe Naruto and Sasuke start as friends right from the beginning without the initial rivalry. Also, a 'Naruto Restart' fanfiction could explore what would happen if Naruto was trained by different people in the village instead of just Iruka and Kakashi at first.
One idea could be a time - travel story where Naruto is sent back in time to the era of Nobunaga. He could use his ninja skills to help Nobunaga in battles, and in turn, learn about the different strategies and cultures of that time. Another idea is a fusion of their powers. Imagine if Naruto's chakra abilities combined with Nobunaga's leadership and military tactics. It could create a really unique and powerful character in the fanfiction. Also, a story about Naruto being reincarnated as Nobunaga or vice - versa would be quite fascinating.
One interesting idea could be new jutsu created specifically for Naruto in the fanfiction. For example, a unique fire - style jutsu that combines with his wind - style Rasengan.
One idea could be to have the characters compete in a Naruto - themed Monopoly where instead of properties like Boardwalk, they have ninja villages. For example, Konoha could be a prime property. Another could be that the Chance and Community Chest cards are replaced with ninja missions or jutsu - related events. Maybe getting a 'Rasengan' card that gives you an advantage over other players.
One idea could be to explore the friendships in different time periods. For example, how their friendships might have been different during their academy days compared to when they are on missions as adults. Another could be a 'what if' scenario, like what if Naruto made friends with an outsider to the village early on.
One idea could be creating a fanfiction where the main character is a new ninja in the Naruto world who discovers a hidden power within themselves during a game-like tournament. They have to face off against various known characters from the series using their unique power.