I think Gaara would be an excellent character to include. His journey from a lonely and feared outcast to a respected leader can be further delved into in a 'naruto remastered fanfiction'. Shikamaru, with his high intelligence and lazy - but - when - needed - to - act attitude, can add some great plot twists. And Sakura, as she has her own development arc in the original series that can be remastered and made more engaging in the fanfiction.
In a 'naruto remastered fanfiction', Rock Lee should be included. His unique fighting style and determination are always interesting to write about. Tsunade is also a good character to add. She has a lot of power and her leadership skills can be put to different uses in a remastered story. And Jiraiya, as he was Naruto's mentor and has a rich backstory that can be expanded on in the fanfiction.
Definitely Sasuke. His complex relationship with Naruto is a major part of the original story and can be further explored in a remastered fanfiction. Kakashi is also a great choice as he has a lot of mystery and knowledge to offer. And Hinata, as she has her own story of growth and her feelings for Naruto can be developed more deeply in a new version of the story.
Ash Ketchum is always a popular choice. His long - running journey in the Pokemon anime makes him a well - known and beloved character. Pikachu, his trusty sidekick, is also a must - include. Another popular character could be Gary Oak, Ash's rival. His competitive nature and growth throughout the series add depth to a fanfiction. And of course, Misty, the feisty water - type Pokemon trainer, can bring some interesting dynamics to the story.
Goku is always a must - include. His never - ending quest for stronger opponents and his pure - hearted nature make him a central figure. Pan is also very interesting as she represents the new generation of Saiyans. And of course, Vegeta, with his pride and his own journey of growth throughout the series.
For a more unique take, including Jiraiya could be great. His pervy but knowledgeable personality could lead to some humorous and yet useful moments. He might have some ancient knowledge about the connection between the Naruto world and the Pokémon world where Darkrai comes from. On the Pokémon side, Cynthia could be a great addition. As one of the strongest Pokémon trainers, she could offer a different perspective on Darkrai and also help in battles against any enemies that might be using Darkrai's power for evil.
Haku should definitely be included. Since Haku was Zabuza's loyal follower, his presence can add depth to the story. He could act as a mediator between Naruto and Zabuza at times. Also, Kakashi can be a great addition. His history with Zabuza makes for an interesting dynamic, and his mentoring of Naruto can play a role in how Naruto interacts with Zabuza.
Well, in addition to Naruto and Urahara, Ichigo from Bleach could be a great addition. Since Urahara has a connection with Ichigo, and Naruto's energetic and positive nature could create an interesting dynamic with Ichigo's more brooding personality.
Kakashi could be a good character to put in. His experience and wide range of ninjutsu could be useful in the story. For Thalia's side, Luke could be included. His conflicted nature and his skills would add a layer of intrigue, especially when interacting with Naruto and Thalia, as they try to figure out whether to trust him or not.
Definitely Naruto himself. His determination and positive attitude can bring a lot to the story. Lala too, of course, with her fun - loving and inventive nature. Sakura could also be a great addition. She could interact with Lala in interesting ways, perhaps learning about Lala's technology and applying some of her medical skills to help Lala if she gets injured.
Madara Uchiha would be an excellent character to include. His long - standing relationship with Hashirama, filled with both friendship and enmity, and his connection to Sasuke and the overall ninja world's history would make for a very engaging fanfiction.
Naruto himself is a must - he's the main character after all. Sasuke could also be great as his rival. Their interactions around the kit would be interesting, like if they both wanted it for different reasons. Sakura could be included too, maybe she helps Naruto figure out how to use the kit.
Definitely Sasuke. His complex relationship with Naruto provides a lot of material for fanfiction. You can explore their friendship, rivalry, and how they grow together. Kakashi is also a great character to include. His wisdom and unique jutsu can add depth to the story. And of course, Sakura. Her growth as a kunoichi and her relationships with Naruto and Sasuke can be interesting to write about.