A less common but still interesting trope is the 'time - travel' one. The reader insert might be sent back in time in the Fullmetal Alchemist universe. This allows for all kinds of interactions with characters at different points in their lives, and can also lead to changes in the original story's events. It's a great way to explore 'what - if' scenarios in the context of the Fullmetal Alchemist world.
The 'love interest' trope is also quite common. The reader insert may end up in a romantic relationship with one of the beloved characters from the series, like Edward or Roy. This can add a whole new layer of drama and emotional depth to the fanfiction. And then there's the 'chosen one' trope. The reader character could be the key to solving a big problem in the Fullmetal Alchemist world, whether it's related to the Philosopher's Stone or the ongoing war. It gives the character a sense of importance and purpose in the story.
The time - travel trope is seen often in Fullmetal Alchemist fanfiction. Maybe a character goes back in time to prevent a certain tragedy from happening. Redemption arcs for some of the more morally ambiguous characters are also popular. Fans like to explore how characters like Scar could find redemption in different ways. And of course, there are the typical 'enemies - to - lovers' tropes, especially for characters who start off on opposing sides like Roy Mustang and some of the antagonists.
One popular trope is the 'fish out of water' scenario. For example, a character from Naruto suddenly finding themselves in the world of Fullmetal Alchemist and having to adapt to its rules and customs while also dealing with a harem of characters from both universes. Another is the power - up trope. A character might gain new abilities by combining the alchemy knowledge from Fullmetal Alchemist with the ninja skills from Naruto, all while being in a harem - type situation where different characters are attracted to their new - found power and unique personality. Also, the 'rivalry for love' within the harem is quite common, with characters from Naruto and Fullmetal Alchemist vying for the main character's affection.
Well, there's the 'alternate - timeline' trope. Time travel can create new timelines in fanfiction. So, instead of the main story's events, a whole new set of events unfold. Maybe in one alternate timeline, Alphonse never lost his body because of something the time - traveling Edward did. And the 'time - loop' trope can also be seen, where a character is stuck repeating a certain period of time until they figure out how to break the loop, which adds a lot of mystery and suspense to the fanfiction.
One popular trope is the 'new girl in Forks' where the reader - insert character is a new arrival in town and catches the attention of the Twilight characters. Another is the 'human - turned - vampire' scenario where the reader - insert experiences the transformation. And of course, the 'love triangle' trope is quite common, often involving the reader - insert, Edward, and Jacob.
To write your own fanfiction, you should also consider the pacing. Don't rush through the story. Let the relationships between your reader insert character and the other characters develop naturally. For example, if your character is going to become friends with Alphonse, show the steps in that process. You can also add some original elements to the Fullmetal Alchemist world, like new types of alchemy or hidden locations. But always remember to keep the focus on your reader insert character and their journey in this fantastical world.
There are also fanfics where the reader is on a quest to understand the origin and nature of the Homunculus. They might team up with characters from the original series like Edward and Alphonse Elric to uncover the secrets of the Homunculus. Along the way, they could develop romantic or platonic relationships with the Homunculus or the other characters. This type of plotline often delves deep into the lore of Fullmetal Alchemist and can be really engaging for fans who want more in - depth exploration of the series' concepts.
One popular trope is the 'powerful reader' where the inserted character has some unique or hidden power. For example, they might be able to control a new type of spiritual energy. Another is the 'romantic insert' where the reader - insert character gets involved in a romantic relationship with one of the main Bleach characters, like Ichigo or Rukia. And the 'mysterious origin' trope is also common, where the reader - insert's past is shrouded in mystery and slowly revealed throughout the story.
One popular trope is the 'New in Town' scenario. The reader character moves to a new Sims town and has to navigate making new friends, finding a place to live, and getting involved in the local community. Another is the 'Romantic Encounter' trope, where the reader meets and falls in love with a popular Sims character. And then there's the 'Mystery Solver' trope, where the reader stumbles upon a mystery in the Sims world and has to solve it.
One popular theme is exploring the backstories of the characters more deeply. For example, there are many fanfictions that focus on the childhood of Edward and Alphonse, or the past of other characters like Roy Mustang. Another common theme is alternate universes, where the events of the original story are changed in significant ways, like if alchemy worked differently or if certain characters had different roles.
One popular 'Fullmetal Alchemist' fanfic could be those that explore alternate endings. For example, some might imagine a world where Edward didn't sacrifice his alchemy in the end. Another type could be ones that focus on side characters like Hughes and expand on their backstories. There are also fanfics that create crossovers with other popular anime, which can be really interesting as they blend different universes together.