Well, one way in fanfiction could be through his connections. Naruto has friends all over. He could ask them to help search for any Uzumaki survivors. And with his status, he could provide a safe place for them to gather. Maybe he even uses some sort of Uzumaki - related jutsu or artifact to draw out those with Uzumaki blood.
In certain fanfictions, Naruto brings back the Uzumaki clan by first researching the history of his own clan. He discovers forgotten techniques and ways to identify Uzumaki lineage. He then travels to different villages and outposts, spreading the word about the Uzumaki. He offers protection and a sense of belonging to those who might be part of the clan. He also tries to revive Uzumaki culture, like their unique sealing techniques, which in turn attracts more people with Uzumaki heritage to come together.
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.
Well, first of all, Naruto would need to address the stigma and fear that might be associated with the Uzumaki name due to past events. He'd use his own story of being an outcast turned hero to inspire those with Uzumaki blood. He could also establish a safe haven for the Uzumaki clan, a place where they can live without fear of persecution. And of course, he'd train the new Uzumaki members in combat and survival skills, just like how the Uzumaki were known for their strength in the past.
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.
Naruto is likely to be the catalyst. He has the influence and the will to bring together the scattered Uzumaki members.
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.
The Uzumaki Clan often plays a significant role in Naruto - themed fanfiction. They can be a source of unique powers for Naruto. Since Naruto is an Uzumaki himself, fanfiction writers may explore how his clan's bloodline gives him an edge. For instance, he could have stronger sealing jutsu capabilities due to his Uzumaki heritage.
Naruto's character could develop a stronger sense of identity. Knowing that the Uzumaki clan saved him, he would be more curious about his heritage. This might make him more confident in his abilities as he realizes the power that runs in his blood. He could become more strategic in battles, incorporating the Uzumaki clan's fighting techniques into his own style.
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.
Maybe Naruto proves himself worthy by showing off his powerful jutsu skills that are related to the Uzumaki heritage. He could also use his status as a hero in the village. By winning the trust and respect of the Uzumaki clan members, he gradually takes over the leadership of the clan.
In the original Naruto storyline, Naruto is proud of his Uzumaki heritage. So in this fanfiction, it's a complete deviation as it goes against Naruto's established character traits.