Naruto could learn about the Uzumaki clan's sealing techniques. They were masters of sealing jutsu. In the fanfiction, he might find out how they developed these complex and powerful sealing techniques, which were passed down through generations. It could be that he discovers some unique seals that were only known to the Uzumaki clan and how they were used for various purposes, like containing powerful entities or storing chakra.
Well, he could start a family with Hinata and have lots of kids, passing on his Uzumaki bloodline. Then, he could encourage his friends who have some Uzumaki connection, like Karin, to also have families and pass on their Uzumaki genes. He could also set up a school or training center in the Uzumaki land, teaching the Uzumaki ways of life and ninjutsu, which would attract orphans or those who want to be part of the Uzumaki clan.
He may feel more proud. Knowing about his clan's great history and abilities, like their sealing techniques and strong life force, could make him see himself as part of a powerful legacy. So he might hold his head a bit higher and have more confidence in his own abilities.
Naruto could also offer incentives for Uzumaki to have children. For example, providing better living conditions, education, and protection. He might also use his influence to find suitable partners for the remaining Uzumaki members, both within the village and from other allied villages. This way, they can start new Uzumaki families and gradually increase the clan's numbers.
One possible plot could be that a long - lost member of the Uzumaki clan discovers they have the Rinnegan. They then have to navigate the dangerous world of ninja politics while hiding their new - found power. They might seek out ancient Uzumaki secrets that could help them master the Rinnegan's full potential.
One idea could be a story where Naruto and Hinata explore the hidden secrets of the Uzumaki clan together. They might discover ancient jutsu or artifacts that could change the future of the Hidden Leaf. For example, they could find a powerful sealing technique that was lost for centuries and use it to protect the village from a new threat.
There are fanfics that center around the Uzumaki clan's origin. Some might describe how they came to be so powerful in sealing. A really good one could be a story where the Uzumaki clan members who survived the destruction of their village, other than Naruto's mother, come back and help Naruto understand his heritage better. They could teach him things that even Jiraiya didn't know about the Uzumaki.
The Uzumaki clan bloodline can also be used in fanfics to explore family and heritage. Characters might discover long - lost secrets about their Uzumaki ancestry that change their view of themselves and their place in the ninja world. It could be something as simple as a new jutsu that was forgotten by the clan but is now accessible to the main character because of their Uzumaki blood, or it could be a much deeper connection to a prophecy or an ancient power.
Well, it could be that the Uzumaki clan has some hidden knowledge or ancient artifacts. In the fanfiction world, they might discover an artifact that has the power to save Naruto from a life - threatening situation. Maybe it's a charm that can heal his wounds or reverse a curse placed on him. And since the Uzumaki clan has a rich history, there are many ways they could use their heritage to save Naruto.