Fanfiction.net is also a good place to look. There are many different categories and you can search specifically for 'Shirou x Fairy Tail' fanfiction. However, the quality may vary, so you might need to skim through a few to find the ones that are really good.
You can try Archive of Our Own (AO3). It has a large collection of fanfictions, and you're likely to find quite a few 'Shirou x Fairy Tail' ones there. Just use the search bar and type in the relevant tags.
Well, in such a fanfiction scenario where Shirou joins Fairy Tail, he'd be exposed to a whole new world of magic. Shirou's used to his own kind of battles, but in Fairy Tail, magic is the norm. He could learn about different types of magic from the other guild members. His own skills could be seen as something quite special in this magical guild. He might also get into some friendly rivalries with the more combat - oriented members, which would be fun to read about.
One popular 'Shirou x Fairy Tail' fanfiction might be 'Shirou's Adventure in Fairy Tail'. It often features Shirou using his unique abilities within the Fairy Tail universe, like his swordsmanship skills combined with Fairy Tail's magic. Another could be 'Shirou and the Fairy Tail Guild', where he joins the guild and forms interesting relationships with the members.
One plot idea could be Shirou Emiya finding himself in the world of Fairy Tail and having to adapt to the magic - based society. He might try to use his Reality Marble in unique ways to combat the dark guilds. Another could be him teaming up with Natsu and his friends to take on a powerful, otherworldly threat that has somehow entered the Fairy Tail universe. He could also learn new forms of magic from the wizards in Fairy Tail, like learning how to incorporate Fairy Tail - style elemental magic into his existing abilities.
Shirou Emiya's abilities would have an interesting adaptation in the Fairy Tail universe. His tracing magic could be related to the concept of analyzing and replicating magic in Fairy Tail. He might be able to study the magical auras of different spells and then create his own versions. His Reality Marble, Unlimited Blade Works, could be a very high - level form of spatial magic in the Fairy Tail context. It could be seen as a pocket dimension where he stores all the weapons he can project. In battles, he could use this ability to surprise his opponents. For example, he could suddenly pull out a large number of weapons from his Reality Marble during a fight, much like how some Fairy Tail wizards can summon multiple magical items or creatures. Also, his skills in swordsmanship would be highly valued in a world where melee combat is also an important part of magic battles.
If Shirou joins Fairy Tail in fanfiction, his character might develop a greater sense of belonging. He has always been on his own journey, but in the guild, he'd be part of a team. This could lead to him being more open about his feelings and past experiences. Also, his combat skills could evolve as he trains with the other members and is exposed to new fighting styles and magical techniques. He might even start to develop his own form of magic - influenced combat, which would be a new and interesting aspect of his character growth.
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.
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.
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.
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.
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.