One popular story could be 'Naruto's Harem Adventure'. It often involves Naruto having a group of female characters around him in various interesting scenarios. Another might be 'Uzumaki Naruto and His Harem of Allies' where his relationships with different female ninjas are explored in the context of their adventures together.
Karui could be one of the characters. Since she is from the Hidden Cloud Village and has a connection to the Uzumaki clan through her son's relation to Naruto. Another could be Hinata. Although she is from the Hyuga clan, her love for Naruto and the Uzumaki influence on Naruto's life could bring her into the story. Also, Tsunade, as she has a connection to the Senju clan which is related to the Uzumaki clan.
Often, they start with Naruto being in some sort of situation where he catches the attention of the female characters. For example, his heroic deeds in battles or his kind heart in helping others. Then, the relationships gradually build as they go on adventures together or train side by side.
Perhaps a plot where Naruto, being of Uzumaki descent himself, has to help the female members of the Uzumaki harem unlock their latent powers. This could involve training sessions that also double as opportunities for romantic development. Or, a plot where the Uzumaki harem has to work together with Naruto to uncover a long - lost Uzumaki clan secret that could change the fate of the ninja world.
The Legend of Uzumaki Hiroto was a derivative work of Naruto, which told the story of Uzumaki Hiroto's growth and the stories of other characters. Uzumaki Boto Legend was different from the original Naruto Naruto Shimbun Legend, so it was considered an independent manga.
The Uzumaki manga is not overly long or short. It's just the right length to immerse you in its creepy world. The number of volumes and pages can change based on the format you come across.
First, give the OC a backstory that ties into the Uzumaki clan. For example, if they were exiled from the clan due to a misunderstanding. Also, give them some Uzumaki - like abilities like strong life force or sealing skills.
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.