He would bring his unique ninja skills. For example, his shadow clone jutsu could be adapted into some kind of magic - like ability in the Fairy Tail world. His strong sense of loyalty and friendship would also influence the Fairy Tail members. He might inspire them to be more united and fight more fiercely for each other.
Perhaps in this fanfiction, Naruto's power is seen as a threat in Konoha. His connection to the Nine - Tails or his unorthodox ninja ways might not be tolerated. And Fairy Tail is a place that welcomes misfits. So, he gets banished from Konoha and finds his way to Fairy Tail. There, he could learn new magic skills and form new relationships, which would be a great twist on his original Naruto story.
One change would be in the training regime. Naruto could introduce more intense physical training similar to what ninjas do. This would make the Fairy Tail mages stronger physically as well as magically.
Yes, it's possible that some characters from Konoha in the Naruto universe might be imagined to read Naruto - Fairy Tail crossover fanfiction in some fan - created scenarios. After all, fanfiction often explores creative and unexpected crossovers, and such a concept could be quite interesting for fans to imagine.
Well, perhaps in this fanfiction, Naruto is banished due to a false accusation in his world. He lands in the Fairy Tail world and is seen as an outsider. However, his determination and strong will attract the attention of some of the Fairy Tail members. Erza, for example, might see his potential and take him under her wing, training him in the ways of the Fairy Tail magic while he also teaches her some ninja tricks.
In this fanfiction scenario, Naruto could leave Konoha due to some sort of misunderstanding. Maybe the people of Konoha in the Fairy Tail world suspect him of being too dangerous with his unique abilities. So, he leaves to prove himself elsewhere, perhaps by joining a different guild or team in the Fairy Tail world that is more accepting of his different nature.
It would be quite strange and exciting. They might be very confused at first as the two universes have different rules and magic systems. But then they could also get inspired by the unique abilities in Fairy Tail.
The main antagonist could be a powerful demon that has been sealed in the Fairy Tail world for a long time. Naruto's arrival disrupts the seal somehow, and the demon sees Naruto as a key to fully breaking free. The Fairy Tail members and Naruto must put aside their differences and combine their powers to fight this demon.
In this kind of fanfiction, Naruto might be banished due to some false accusations or political conspiracies in Konoha. Once banished, he could decide to destroy Konoha out of anger and a sense of betrayal. He may have learned powerful jutsus during his exile and use them against the village that once rejected him.
One possible fanfiction idea could be that Naruto is wrongly accused of a heinous crime against Konoha. The village elders, fearing his power and influenced by some anti - Naruto factions, sentence him to death. However, instead of executing him, they banish him. Naruto, heartbroken and confused, leaves Konoha with a vow to find the truth and prove his innocence. He embarks on a journey, meets new allies who believe in him, and gradually grows stronger, all while plotting his return to clear his name.
Naruto would likely be very confused at first. He has a strong sense of belonging and has always fought for his place in his own ninja village, so being suddenly banished from the Fairy Tail guild would be a shock. He might try to plead his case and explain that he has done nothing wrong.