Some of the old Uzushiogakure survivors, if there are any, could be the ones who hold the key to the old traditions and techniques. They would teach the new generation. Hinata could use her Byakugan to help in finding suitable locations for building within Uzushiogakure. Shikamaru might be involved in the strategic planning of how to deal with any threats that come the new village's way. And the Akatsuki members, if any are still alive, could be a major threat to the rebuilding process.
Gaara could be a great support, as he has experience in rebuilding his own village, Suna. He could offer advice on how to deal with economic aspects of rebuilding Uzushiogakure. Ino could use her mind - transfer jutsu to communicate with the spirits of the old Uzushiogakure, if that's possible in the fanfiction, to get more information about the village's past. Kiba and Akamaru could help in guarding the perimeter during the rebuilding process. And Tenten could contribute by providing weaponry and knowledge about forging for the new Uzushiogakure shinobi.
One possible plot could be that Naruto, with his experience and leadership skills, teams up with Karin, who has her own unique abilities. They start by gathering survivors of Uzushiogakure. Naruto uses his influence to get resources from the other Hidden Villages, while Karin uses her sensory skills to find any remaining Uzushiogakure artifacts or secret locations. They then begin to train the new generation of Uzushiogakure shinobi, incorporating new and old techniques, and slowly but surely, Uzushiogakure rises again as a strong and respected village.
Sakura could be one of the characters. Since she has a long - standing relationship with Naruto, she might be part of this harem - like situation. Her medical skills could also complement Naruto's abilities. Another could be Hinata. Her gentle and loving nature towards Naruto would fit well in this scenario.
Obviously, Naruto would be one of the main characters. He's the driving force behind the rebuilding of Uzushiogakure. Hinata might also be involved, as she is Naruto's wife and could offer her support, perhaps in terms of taking care of the villagers' needs. Another character could be Kakashi. His experience and wisdom would be valuable in guiding Naruto through the process, especially when it comes to handling political aspects or dealing with potential threats.
There could be some of the older Uzushiogakure ninjas who survived the previous disasters. They would play an important role in guiding Naruto about the secrets of the village. And maybe some new characters could be introduced, like a young Uzushiogakure ninja who looks up to Naruto and helps him in his quest to save the village.
Well, Naruto is the key figure in these fanfictions. But characters like Tsunade can't be ignored. As the Hokage, she may give Naruto special tasks or resources that aid in his rise. Rock Lee is also common. His dedication to training and his unique fighting style can inspire Naruto. And Neji, before his death in the original series, could be a character who, in fanfiction, has a change of heart and helps Naruto understand more about the Hyuga clan's secrets, which in turn helps Naruto gain more power and influence.
He might encounter unique and dangerous beasts in Uzushiogakure. Fanfiction often has new and exciting creatures for the protagonist to face, and Uzushiogakure's different environment could be home to such beasts.
Other countries can also be a source of mystery. Fanfiction authors may create them as places with secrets. Maybe they have hidden technologies or ancient powers that could potentially change the fate of Panem if discovered. So characters in the fanfiction might embark on a journey to these countries to find solutions to the problems in their own land.
Characters drive the plot forward. They make decisions, face challenges, and undergo changes that shape the story.
Sasuke could also be important. He might be initially skeptical of Naruto's Sage Chakra but later see its potential and even collaborate with Naruto. Also, the Great Toad Sage is a key character. It could give Naruto new prophecies related to his Sage Chakra, leading him to new adventures and challenges. Tsunade could also play a role, perhaps in helping Naruto understand the medical aspects of Sage Chakra and how it affects his body.
Obviously Naruto himself is the central character. His growth and new abilities would be the focus. Sasuke could also be important. He might have his own development and his relationship with Naruto could be explored further, whether they are friends or rivals again.