Naruto could start by being exiled to Magnolia, where Fairy Tail is located. He'd probably be confused by the magic at first. However, his quick - learning nature would allow him to adapt. He could share his story with the members of Fairy Tail. His sense of justice would align with the guild's values. And his transformation into his Nine - Tails form could be a super - powerful weapon against the guild's enemies.
In this fanfiction, Naruto's exile could be due to political reasons within the Fairy Tail guild. There might be a faction that fears his growing influence. Since Naruto is used to being an outsider in his own world too, he might initially be heartbroken but then decides to prove himself outside the guild. He could start his own group of misfits, similar to how he was part of Team 7 in his original story.
One interesting plot could be Naruto having to prove himself in Fairy Tail's guild. Since he's from a different world with different powers, the members might be skeptical. He'd have to show that his ninja skills are just as valuable as their magic. Another plot could be him finding a way to combine his chakra with magic. It would be really cool to see how he uses this new power to fight against common enemies.
Maybe the main antagonist is an outside force that has influenced the Fairy Tail guild to exile Naruto. For example, a dark guild could spread false rumors about Naruto, making the Fairy Tail members believe that he is a danger to them. This way, they can get Naruto out of the picture and then plan an attack on the Fairy Tail guild without having to deal with Naruto's power.
One idea could be that Natsu is exiled due to a false accusation of using dark magic. He then has to journey alone to prove his innocence, encountering new friends and foes along the way. Maybe he discovers a new form of magic during his exile.
The Fairy Tail guild members who supported Natsu's exile could be antagonists. They might believe in false accusations against him or have their own motives for wanting him out of the guild, like jealousy of his power or popularity.
It could also be a story about Natsu's personal growth during his exile. Without the support of his Fairy Tail friends initially, he has to rely on his own strength and wits. He might discover new magical abilities or face challenges that test his character, and in the end, he either returns to Fairy Tail as a changed and stronger wizard or decides that his new path outside the guild is better for him.
In that fanfiction, it might be designed that way. Naruto has incredible powers in his own series, like his various jutsu. If translated into the Fairy Tail world in fanfiction, his skills could potentially make him very powerful. But it also depends on how the author of the fanfiction interprets and balances the power systems of both universes.
The Sharingan in such a fanfiction could be used as a tool for a Fairy Tail character to gain an edge in their battles. They might initially struggle to control it, but as they learn more about it, they become a formidable force. For instance, they could use the Sharingan's genjutsu abilities to deceive opponents in the Fairy Tail battles.
In the Fairy Tail world, Naruto would bring his unique ninja abilities. For example, his shadow clone jutsu could be used in creative ways during battles or to perform tasks. He would likely befriend Natsu because they both have a passion for fighting and protecting their friends. Naruto could also introduce new combat styles to the Fairy Tail guild, which might change the way they approach battles.