Sakura could be an unexpected character to have the Sharingan. It would completely change her character dynamics. She could use it to enhance her medical ninjutsu, seeing the internal body structure more clearly. Also, she could become a more formidable fighter, using Sharingan - based genjutsu to her advantage.
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 fanfiction, the Rinnegan is often depicted as more powerful than the Sharingan in many ways. The Rinnegan has abilities like the Six Paths techniques which can be extremely overpowered. For example, it can allow the user to control gravity, summon large creatures, and even revive the dead. While the Sharingan has its own set of cool abilities like predicting movements and casting genjutsu, it seems limited in comparison when it comes to the grand scale of power shown by the Rinnegan in most fanfictions.
Yes, there are likely some fanfics out there with this concept. The Naruto fandom is vast and creative, and some authors might come up with the idea of Naruto having a blue Sharingan for the sake of unique storylines, crossovers, or just to explore different power combinations within the Naruto universe.
One possible concept could be a story where a character from Fairy Tail somehow obtains the Sharingan from the Naruto universe. This could lead to all kinds of new abilities and storylines. For example, they might use the Sharingan's predictive abilities in battles within the Fairy Tail world, creating a whole new dynamic in combat.
It could have completely changed the dynamics of his battles and his relationships with others. The Sharingan would have given him an extra edge and new abilities.
Well, in fanfiction, one way could be that some Kumo ninjas are given the Sharingan as a gift or a curse from an ancient being. They then start to form a special group within the village dedicated to understanding and mastering the Sharingan. This group would share their knowledge with others, and over time, the Sharingan becomes an important part of Kumo's ninja heritage, with its own set of training methods and traditions.
One great Naruto fanfiction with EMS and Sharingan is 'The Uchiha's Redemption'. It delves deep into the character who has awakened the EMS and how they use the power of the Sharingan in new and unexpected ways. The story also has a great plot that involves the main character facing off against powerful foes while trying to uncover secrets about the Uchiha clan.
One idea could be a crossover where a character with the Sharingan from Naruto somehow ends up in the world of Rosario Vampire. They could use their Sharingan abilities to detect and combat the various supernatural threats in the Rosario Vampire world, like the vampires and werewolves. Maybe they'd form an alliance with Tsukune or Moka.