The Jinchuriki of the Two Tails, Yugito Nii, is often a main character. She has a complex relationship with the tailed beast inside her.
Naruto himself can also be a main character in such fanfictions. Since he has a connection with all the tailed beasts, he might interact with the Two Tails in unique ways, like trying to understand its power better or helping Yugito control it.
Naruto himself is often a main character. Since he has a strong connection to the tailed beasts in the original series, in fanfiction involving the Ten Tails, he is usually at the center of the action, trying to either defeat it or understand it better.
Naruto is often still a main character in such fanfiction. Since he has a strong connection with the tailed beasts already. Sasuke might also be involved as he is another important figure in the Naruto universe. And of course, the new hosts of the reincarnated tailed beasts would be main characters as well.
In a lot of 'zero tails naruto fanfiction', Naruto is front and center. He has a knack for getting involved in extraordinary situations. Kakashi could also be a main character in such fanfictions. His experience and wisdom could be crucial in understanding and combating the zero tails. Additionally, characters like Shikamaru, with his intelligence, might be involved in devising strategies to handle the new threat posed by the zero tails.
Well, obviously Tails is the main character as it's about his weight gain. But Sonic often shows up in these fanfictions too. Sonic might be there to support Tails, or he could be initially confused about what's happening to his friend. Another character could be Dr. Eggman. He might be the cause of Tails' weight gain, either intentionally through some evil plan or accidentally because one of his inventions backfires.
Often, Sonic characters like Sonic himself or Tails might be involved. Since the Tails Doll is related to the Sonic franchise, they could be trying to save their friend or the world from the curse. Maybe Sonic, with his speed and courage, is on a mission to stop the Tails Doll's curse from spreading further.
Naruto himself is often a central character in 'naruto destruction fanfiction'. Since he is the main protagonist of the original series, fanfiction writers like to put him in situations where he has to deal with destruction. Sasuke is also frequently involved as his rival, and their relationship can be explored in the context of destruction, like if they have to work together to stop a greater threat of destruction.
Well, Naruto is obviously a main character in most of these. But there could also be Sasuke. He might be either an ally or an adversary in relation to the dagger. For example, if the dagger has a power that can either be used for good or evil, Sasuke could be tempted by its darker potential.
Some fanfictions might also include characters like Kakashi in important roles. As Naruto's former teacher, he could be a guiding figure or someone who has to adapt to Naruto's new level of power. He might also be involved in trying to keep Naruto's power in check if it starts to have negative effects on the ninja world.
Naruto himself is often a main character in naruto helmet fanfiction. Since he is the protagonist of the original series, it makes sense that he would be involved with a special helmet in fan - created stories. He could discover the helmet's powers and use them to become even stronger.
Naruto himself is often involved. Since he's the main character of the original series, in fanfiction with loopholes, he might use some loophole to achieve his goal of becoming Hokage faster or getting stronger in a unique way. Sasuke could also be a main character in such fanfictions. He might find a loophole to deal with his quest for revenge or his power - seeking in a different manner.