Natsu could be a great main character. His hot - headed nature and powerful fire magic would make for an exciting adventure around the Gate of Fate. He could be drawn to it by the mystery and the potential power it holds, and his journey to understand and protect or use the Gate would be full of action.
A great plot could involve the Gate of Fate being a key to a parallel dimension within the Fairy Tail universe. Characters could accidentally open it and find themselves in a world with different magic rules and strange creatures. They would then have to find a way back while also dealing with the new threats and mysteries of this dimension. This would not only test their magic skills but also their ability to adapt and work together as a team, like the Fairy Tail guild usually does.
Well, a major unique element is the crossover of character relationships. In normal Fairy Tail or Fate Stay Night stories, the relationships are within their own universes. But in the fanfiction, we can see relationships like that between Happy from Fairy Tail and Illya from Fate Stay Night. Happy's cheerfulness and Illya's cuteness create a really endearing bond. Also, the way the fanfiction can play with the different story arcs of both series is unique. It can take a plot point from Fate Stay Night and mix it with Fairy Tail's story - telling style, creating a fresh and engaging narrative that stands out from the original works.
I would recommend 'Fairy Tail and Fate Stay Night: United Front'. In this fanfiction, the guilds in Fairy Tail and the Masters in Fate Stay Night come together to face a common threat. The story does a great job of exploring the different personalities of the characters from both series. For instance, Gray's cool and sometimes brooding nature contrasts well with Rin's more energetic and impulsive personality. It's a great read for fans of both franchises as it weaves their elements together in a seamless and engaging way.
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.
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.