One common theme is redemption. Annie has done some pretty bad things in the series, and in many fanfics, Armin is a key figure in her journey towards redemption. Another theme is love in the face of chaos. Given the world they live in, filled with Titans and danger, their love is often portrayed as something that can survive and even thrive in such a harsh environment. Also, the theme of understanding each other's pasts is quite common. They both have complex backstories, and fanfics often explore how they come to understand and accept each other's past traumas.
One common theme is loyalty. Armin and Erwin are both extremely loyal to their comrades and to each other. In fanfics, this loyalty often becomes a central aspect of their relationship. Another theme is leadership. They are both leaders in their own ways, and fanfics might explore how they lead together or support each other's leadership.
One common theme is the exploration of the blurry line between friend and foe. Since the Female Titan is initially an enemy, fanfictions often delve into whether she can become an ally through her interactions with Armin. For example, Armin might try to convince her to side with the humans.
One common theme is friendship. They both come from different backgrounds and have had different experiences, so exploring how they form a friendship is popular. For example, in many fanfics, they start off as just acquaintances and gradually become close friends through shared experiences.
Some fanfics might explore a romantic relationship between them in a more secretive or forbidden way. Given the military setting and the overarching plot of Attack on Titan, their relationship might be something they have to hide. This adds an element of tension and drama to the story, as they navigate their feelings while also dealing with the threats of the Titans and the politics within the walls.
One popular trope is the 'enemies to lovers' dynamic. Given their positions as former enemies in the main story, it's common for fanfictions to explore how they transition from hostility to love. Another trope is the 'hurt/comfort' where, for example, Annie might be injured or in distress, and Armin is there to comfort her, which deepens their bond.
Armin and Annie's relationship in fanfiction can also involve a lot of emotional growth. Armin, with his intelligent and empathetic nature, might be the one to break through Annie's cold exterior. He could start to see the real Annie behind the hardened soldier facade. This could lead to a romantic relationship where they support each other, especially considering the difficult times they face in the world of Attack on Titan.
They have a complex and often tense relationship. Annie is an enemy of the humans initially, while Armin is one of the main characters fighting for humanity.
Sure. One popular 'Attack on Titan Armin x Annie fanfic' is 'The Unspoken Bond'. It delves deep into their relationship post - the main events of the series, exploring how they heal together and come to understand each other on a new level. Another great one is 'Shared Horizons' which focuses on their adventures side by side, facing new threats and relying on each other's strengths. There's also 'Hearts in the Ruins' which is a more emotional take on their relationship, dealing with the traumas they've both faced and how they find solace in one another.
Love and acceptance are also big themes. They come from different backgrounds and have different personalities. So, their journey to accept each other and fall in love is often explored. A lot of fanfics show how they break down the barriers between them to be together.
Another theme is growth. They both grow as characters throughout the series, and in fanfictions, this growth is sometimes shown in relation to their relationship. Maybe Armin becomes more confident and Mikasa learns to open up more because of their bond.