Sasuke is often involved. His powerful chakra and skills make him a natural fit for stories involving barriers. He could be trying to break through a powerful barrier or using his Sharingan to analyze and then counter a barrier technique. Naruto is also popular. His large chakra reserves could be used to power up or break barriers in unique ways.
Hashirama Senju can be a key character in such fanfictions. His ability to create large - scale structures and his powerful chakra could be related to creating or dealing with barriers. He might create a massive barrier to protect a village or try to break an ancient and powerful barrier that has been sealed for centuries.
Kakashi is frequently seen in Naruto barrier fanfiction. Given his intelligence and wide range of jutsu knowledge, he could be the one devising strategies around barriers. He might use his Sharingan to copy an enemy's barrier technique and then find a way to defeat it. Hinata is another character. Her Byakugan could be used to detect weak points in barriers, which is an interesting plot point in many fanfictions.
Naruto himself is obviously very popular in these fanfictions as the main character. His decisions are the central focus. Sasuke is also commonly involved. Since Sasuke's actions and decisions often intertwine with Naruto's, fanfiction writers like to explore how different decisions from Naruto would affect Sasuke's path. For example, if Naruto made a decision that could sway Sasuke from his revenge - seeking journey.
Naruto is often involved. Since he has the ability to transform into the Nine - Tails in the original series, fanfiction might expand on this by giving him more shapeshifting abilities or different forms of the Nine - Tails transformation. For example, a more powerful and controlled version of the full - Nine - Tails form.
Kakashi is another character that frequently shows up. His experience and cool - headedness make him a great character for a reborn character to interact with. The reborn character could learn from Kakashi or even teach him something new, creating an engaging relationship within the fanfiction story.
Naruto himself is often involved. Since Gear 4 is a power - up concept, it makes sense for Naruto, with his never - give - up attitude and strong chakra reserves, to be the one to either use or face Gear 4. He could potentially learn to incorporate it into his Rasengan techniques.
Naruto himself is often involved. Imagine Naruto henged into a powerful ancient sage form that no one has ever seen before. It would create a whole new set of adventures for him.
Naruto himself is often a central character in these fanfictions, as the source of the powers being mimicked. Sasuke is also quite popular. He has his own set of powerful abilities, and in fanfictions, he might be involved in situations where others try to mimic Naruto's powers in relation to him, either as a rival or an ally. Sakura could also be involved. She might be the one observing or helping someone mimic Naruto's powers, especially considering her growth as a medical ninja and her own combat abilities.
Naruto himself is obviously a very popular character in such fanfictions. Since the stories often revolve around his hidden powers. Sasuke is also commonly involved as his rival. Their relationship and the contrast between Naruto's newfound hidden power and Sasuke's own abilities make for interesting storylines. Sakura can also be a key character, maybe she plays a role in helping Naruto discover or control his hidden power. Kakashi too, as Naruto's former teacher, could be involved in guiding Naruto in understanding and using this hidden power.
Sasuke is often involved. Given his natural inclination towards power and his Sharingan, it's easy to imagine him exploring the Meiton Release. His quest for power could lead him to discover and master this dark release. Another one is Naruto himself. Fans might write about Naruto learning Meiton Release to add a new dimension to his already vast arsenal of jutsu, perhaps as a way to face an even stronger enemy.
Sasuke is often involved. His natural affinity for sword - play and his powerful abilities like the Sharingan make him a prime candidate for fusion - related stories. Fans like to imagine him fusing his sword skills with other strong characters.
Sometimes Naruto himself can be involved in 'naruto puppet body fanfiction'. Imagine Naruto getting some sort of connection with a puppet body, either by accident or as part of a new training method. This can lead to some really interesting story developments as Naruto has to adapt to this new form of combat and existence.