In fanfiction, Naruto is often the central character. His relationship with Kushina, his mother, can be explored in depth. For instance, there could be stories about how Kushina passed on her strength and will to Naruto. Mikoto, on the other hand, can be brought into the story to show the connection between the Uzumaki and Uchiha clans. Maybe she helps Naruto understand more about Sasuke's past.
In fanfiction, Naruto, Kushina, and Mikoto can be portrayed in various interesting ways. Some fanfictions might focus on their family relationships. For example, Kushina being Naruto's mother could lead to stories exploring her influence on his growth. Mikoto, as Sasuke's mother, could be part of crossovers where her relationship with Kushina is explored, perhaps in a pre - Konoha setting. It gives writers a chance to expand on the characters' backstories and create new adventures for them.
There are some out there. However, the quality can vary a great deal. Some might focus on their friendship, perhaps imagining scenarios where they team up to take care of Naruto in a more motherly way. Others might delve into more creative storylines, such as them having some kind of adventure together that wasn't part of the original Naruto plot. It really depends on what you're looking for in a fanfiction.
I recommend 'Naruto: The Uchiha and the Uzumaki'. This fanfiction explores the deeper connections between Mikoto (an Uchiha) and Kushina (an Uzumaki) and how Naruto is influenced by their legacies. It's a long - form fanfiction that really takes its time to build up the story and the relationships, making it a great read for fans of these characters.
One common theme is motherhood. Since both are mothers in the Naruto story, fanfictions might explore how they deal with the challenges of raising their sons. Another theme could be friendship. They could be portrayed as good friends who support each other through difficult times in the ninja world.
Another option is Wattpad. While it may not be as specialized as the other two for Naruto fanfiction, there are still quite a few stories about these characters. You might need to dig a bit deeper using the search bar and different filters, but it can be a good source.
Perhaps a fanfic about a special training session. Kushina and Mikoto decide to train Naruto together. Kushina teaches him some unique Uzumaki jutsus, while Mikoto imparts some of the Uchiha's wisdom and combat skills. Through this training, Naruto not only becomes stronger but also forms a deep bond with the memories of his mother and Sasuke's family.
One aspect of Kushina x Mikoto fanfiction might be the cultural and clan differences they have to navigate. Kushina is from Uzumaki clan and Mikoto from Uchiha. This can create a rich backdrop for stories, like how they deal with the expectations of their respective clans while still maintaining their relationship.
One common theme is family bonds. Since Kushina is Naruto's mother and Mikoto is Sasuke's mother, stories might explore how they could form a unique family unit with Naruto. Another theme could be mentorship, with both Mikoto and Kushina guiding Naruto in some way.
Well, it really depends on what you consider 'good'. There are definitely stories in this category. Some might focus on an alternate universe where Naruto has different relationships with Mikoto and Kushina. Others could be more about friendship or a unique adventure they all go on together. You might have to dig a bit through the search results to find the ones that suit your taste.