One common theme is the discovery of love. Muriel is often depicted as a shy character, so the fanfics usually focus on how the relationship between Muriel and the reader develops slowly as they get to know each other.
Another theme is the healing aspect. Muriel has his own traumas, and in the fanfics, the reader might be the one to help him heal, and in turn, Muriel also helps the reader with their own issues. It's all about mutual growth and support in the relationship.
One common theme is adventure. Since Shiro is often associated with heroic deeds and battles, many fics will have the reader joining him on some kind of intergalactic adventure. Another theme is trust. As Shiro is a leader, the relationship between him and the reader might develop as they learn to trust each other in difficult situations. There's also the theme of healing. Shiro has been through a lot, and some fics will explore how the reader helps him heal from his past traumas, and vice versa.
One common theme is the relationship development between Karma and the reader. It could start from a simple acquaintance and gradually grow into a deep friendship or something more. Another theme is adventure. They might go on some exciting adventures together, facing challenges and solving problems side by side.
Another theme could be the exploration of Stein's scientific side in relation to the reader. For example, the reader might be involved in Stein's experiments in some fanfictions, leading to a deepening of their connection. Also, themes of trust and acceptance are quite common, as Stein is a complex character and the reader has to learn to accept him as he is.
There are also fanfictions that focus on the power dynamics in the relationship. Hordak is a powerful figure in the She - Ra world, and how this power affects his relationship with the reader can be an interesting theme. Some stories might explore how the reader challenges his power, while others might show how they are influenced by it. And sometimes, the theme of acceptance - of Hordak's past, his differences, etc. - by the reader is also explored.
One common theme is friendship - to - lovers. It often starts with the reader and Patton being friends and then developing deeper feelings. Another theme could be comfort. Patton is usually portrayed as a very kind and comforting character, so fanfictions might focus on him comforting the reader during a difficult time. There's also the adventure theme, where the reader and Patton go on some sort of adventure together.
One common theme is adventure. Phineas is often depicted going on wild adventures with the reader. Another theme is friendship turning into love, showing the development of their relationship.
A common theme is the 'bad boy' allure of Gaston. The reader is often drawn to his confidence and physical strength. Another theme is redemption. Sometimes Gaston is portrayed as having a chance at changing his ways because of his relationship with the reader.
One common theme is the exploration of Blitzwing's different personalities. Since he has three, it can make for an interesting dynamic in the relationship with the reader. Another is the idea of the reader being in a dangerous or exciting situation in the Transformers universe and Blitzwing coming to their rescue.
Another theme is the idea of an unlikely connection. Given Bakura's nature, it's interesting to see how he forms a bond with the reader character, often in unexpected ways. For example, in some fanfictions, they start off as enemies but gradually become closer.
One common theme is power dynamics. Makima is a very powerful character, so exploring how that power affects the relationship with the reader is popular. Another theme is mystery. Makima has an air of mystery about her, and fanfictions often play on that. And of course, there's the theme of love and attraction, whether it's a slow - burn type of love or an instant connection.