Yes, there are quite a few. You can start by looking on fanfiction.net or Archive of Our Own. Some fanfictions might explore their relationship in an AU (alternate universe) setting, like a modern-day scenario where they meet and get married, while others could be more in line with the original story's themes and settings but with a different plot twist leading to their marriage.
One common theme is the exploration of a new world order. Since Eren and Historia are both important characters, their marriage could signify a change in the power dynamics of their world. Another theme is the growth of their relationship, from initial attraction to a deep, committed love. And often, there's the theme of facing challenges together, whether it's from outside forces or internal conflicts within their relationship.
Historia in 'Attack on Titan' is significant as she represents the hidden secrets and power struggles within the walls. Her character development is a key part of the story's exploration of the society. Eren, being the main protagonist, is the one who initiates a lot of the action. His character embodies the themes of freedom and the will to fight against oppression. Together, they add different dimensions to the story. Historia's story arc is intertwined with Eren's, and their combined presence enriches the narrative.
There could be. Check out various fanfiction communities. They often have filters or tags that can help you find the more family - appropriate stories about Eren and Historia in this situation. It may take some searching, but they do exist.
Well, it could be a fan - made story about Historia and Eren in a high school setting. Maybe it involves their relationship, like a budding romance or a strong friendship. It could also include other characters from the original story in high school scenarios, like dealing with schoolwork, bullies or participating in school events.
A great Eren Yeager OC fanfiction I read was about an OC who was a half - Titan. This OC had to hide their true nature from everyone, including Eren at first. But as the story progresses, they reveal their identity to Eren and together they try to find a way to end the Titan curse once and for all. It's full of action, drama, and explores the complex relationship between humans and Titans in a new way.
The idea of Eren Yeager in a harem scenario is interesting because it takes a character from a serious and often dark story and puts him in a more light - hearted, relationship - focused situation. It allows for different character interactions that we don't see in the original work.
There are various 'Eren Yeager x Harem' fanfictions. Some stories could be about Eren being in a harem situation where he has to balance his duties and his relationships. Maybe in one, he is training to fight Titans while also navigating his feelings for multiple girls. These fanfictions often play with the existing character dynamics and create new scenarios for the characters to interact in.