One idea could be a dark mage who infiltrates the Fairy Tail guild under a disguise of a friendly new member. He then starts to secretly cast curses on the members, causing them to have terrifying nightmares that seem all too real. Another could be that an ancient evil is awakened in Magnolia and it starts to possess the townspeople, making them turn against Fairy Tail. The guild has to figure out how to exorcise the evil without harming the innocent.
It adds more content. The official Fairy Tail series has a limited number of episodes and chapters. Fanfiction fills in the gaps. For example, it can create stories about what the characters were doing during the time - jumps in the original story.
If Lucy never joined Fairy Tail, the friendships and relationships among the characters would form in a very different way. Also, many of the story arcs might not unfold as they do in the original plot.
One popular theme is alternate universes (AUs). Writers like to explore what would happen if the Fairy Tail characters were in different settings, like a modern - day high school or a steampunk world. Another common theme is romance. Fans often pair up their favorite characters in different relationships, such as Natsu and Lucy or Gray and Juvia.
Erza and Jellal are also a favored couple in Fairy Tail fanfiction. Their complex past, with Jellal's redemption arc, adds a layer of depth to their potential relationship. It allows for stories that deal with forgiveness, love that overcomes past wrongs, and the growth of their connection over time. There's also Gajeel and Levy, as their interactions in the series suggest a budding relationship that can be elaborated on in fanfics.
Play with the characters' fears. In Fairy Tail, most characters have something they're afraid of. Maybe Gray is haunted by visions of Deliora in a more menacing and real - life - like way. You can also make the familiar settings seem strange and threatening. The usually bustling Magnolia town could become a desolate place with empty streets and a thick fog that muffles all sounds, creating an atmosphere of dread.
You can try websites like FanFiction.net or Archive of Our Own (AO3). FanFiction.net has a large collection of Fairy Tail fanfics. Just search for 'Fairy Tail' in the search bar, and you'll get a bunch of results. AO3 also has high - quality fan works, and it often has more in - depth and unique takes on the Fairy Tail universe.
The condition could be that the main character has to give up their magic for a period of time. This would create a lot of interesting plot twists as they'd have to rely on their wits and the help of their friends in the Fairy Tail guild instead of their magical abilities.
One interesting story could be one that focuses on the character development within the Fairy Tail universe while still having a touch of the unique elements from 'Lemons Fanfiction'. For example, a story about a secondary character getting a chance to shine and their relationships evolving in a way that's not shown in the original series. However, it's important to note that 'Lemons' often implies more adult - themed content, so many platforms may not allow such explicit fanfictions.
I really like 'Fairy Tail and the Lost Fairy Tale'. In this fanfiction, the Fairy Tail guild discovers an ancient, lost fairy tale that seems to have a connection to their own powers. It has a lot of action and also delves into the backstories of some of the less - explored characters in a really interesting way. It's full of mystery and adventure.