One interesting story could be about their adventures together in a magical world. They might discover hidden powers within themselves and use them to overcome challenges. For example, they could be on a quest to save their town from a dark force. Along the way, they develop a deeper understanding of each other and their friendship turns into something more special.
Fanfiction.net also has a good collection. It has been around for a long time and has a large user base. You can search for imaizumi x naruko fanfiction by using the search bar and filtering the results. However, the interface might not be as modern as AO3, but it still offers a lot of great stories.
In a imaizumi x onoda fanfic, the story could be set in different scenarios. It could be during a training camp where they face various challenges together. Maybe there's a rivalry with other teams and they have to work as a team to overcome it. Their different riding styles, with imaizumi's more aggressive and onoda's unique 'eagle' style, could be a central part of the plot. They could learn from each other's styles and develop a deeper bond through that process.
For Naruto, you can develop his character by having him face new challenges related to his relationship with Narumi and Naruko. For example, he might struggle with how to balance his friendship with both of them. Narumi could be developed by giving her a backstory that ties into the Naruto universe in a unique way, like she has a family connection to an old ninja clan. And for Naruko, you can explore her more feminine side in contrast to Naruto's more brash nature, especially when it comes to her interactions with Narumi.
For Naruto, you could show his growth in terms of his leadership skills when he's with Naruko and Kushina. He could learn to be more patient and understanding, especially when Naruko might have a different approach to things. For Naruko, her character could be developed by showing her struggle to be recognized in a world where Naruto already has a reputation. Kushina could be developed by exploring her motherly side more deeply, as she interacts with both Naruto and Naruko.
One common theme is friendship. They often explore how Naruto, Naruko and Narumi form a strong bond of friendship through shared experiences. Another theme is adventure, as they go on various quests together.
One popular 'naruto x naruko x narumi fanfiction' is 'The Trio's Adventure'. It focuses on their unique bond and the adventures they embark on together in a world filled with new challenges and mysteries.
Yes, there are likely some non - adult fanfictions out there. Some might focus on their relationships in a more family - oriented or friendly way. For example, they could be depicted in a story where they train together, share their dreams and support each other in achieving their goals in the ninja world.
One common theme is friendship. They all grew up in the same village and have different relationships with each other. Fanfictions might explore how they support each other through tough times. For example, during a difficult mission.