A possible plot is that Naruto is mistaken for a powerful wizard in the Fairy Tail world. Erza initially doubts him but as they get into battles together, she realizes his strength. They have to work together to stop a ancient evil that is awakening. Along the way, Naruto's positive attitude starts to change the way the Fairy Tail guild members view things, and Erza becomes more open - minded due to Naruto's influence.
I really like 'Erza's New Journey in Naruto'. In this fanfic, Erza somehow gets transported to the Naruto world. The story shows how she adapts to the new environment, with all the ninjutsu and different cultures. It's fascinating to see her interact with Naruto and his friends. Also, 'Fusion of Powers' is a good read. It's about a scenario where the powers of Naruto characters and Erza's magic start to blend, creating some unexpected and exciting situations.
A common theme is the adventure - based stories. Writers send Erza and Naruto characters on quests together. It could be to find a powerful artifact that has significance in both worlds. In these fanfics, they face various obstacles and enemies along the way. Also, the theme of friendship is prevalent. It shows how Erza forms deep bonds with the Naruto characters, like how she might become great friends with Sakura, sharing their experiences as strong female characters in different but equally dangerous worlds.
Well, Naruto would probably gain some really unique magical abilities. Fairy Tail mages are known for their diverse magic, and Naruto could combine his chakra skills with something like Fire Magic or Celestial Magic. He might become even more powerful in combat, with new ways to attack and defend.
Character development is also a common element. The reader character often starts off with certain traits and then grows as they interact with the characters from Naruto and Fairy Tail. For example, they might learn about loyalty from Fairy Tail characters and perseverance from Naruto characters. And of course, there's always the adventure aspect. Whether it's a mission in the Naruto world or a quest in the Fairy Tail world, the reader is usually right in the middle of it all.
One common theme is the power combination. Since Naruto has his ninja skills and Juvia has her water - based magic, fanfictions often explore how they can combine their powers to defeat enemies. Another theme is the cultural clash. Naruto's world has a very different culture compared to Fairy Tail's, and seeing how Juvia adjusts to it or how the two cultures interact can be really interesting.
Well, I've come across some. In some of these fanfictions, the characters with the Rinnegan might end up in the Fairy Tail universe and form alliances or rivalries with the Fairy Tail wizards. It often depends on the creativity of the author in mixing the two very different worlds together in a believable and engaging way.
Another theme is adventure. Since they are from different realms, they usually embark on a journey together. This could involve exploring new places, facing unknown enemies, and uncovering secrets. In many fanfics, they use their unique skills to overcome obstacles during these adventures.
In 'naruto x ur fairy tail fanfiction', a great crossover idea could be the exploration of different worlds. Naruto's world of ninja villages and hidden powers could collide with Fairy Tail's world full of magic guilds. Characters might travel between these worlds and face challenges that require both ninja skills and magic. For instance, a group of Naruto characters could end up in the Fairy Tail world and have to learn about magic quickly to survive. Or vice versa, Fairy Tail mages could visit the ninja world and be amazed by the stealth and combat skills of the ninjas.
One good 'Naruto x Fairy Tail romance fanfiction' story is 'The Unlikely Bond'. It weaves an interesting plot where Naruto and a Fairy Tail character meet in a strange new world and slowly develop feelings for each other. Another is 'Cross - Realm Love' which focuses on how their different powers and backgrounds create a unique dynamic in their relationship. There's also 'A Tale of Two Worlds' that shows their journey of falling in love while facing challenges from both their universes.