A common theme is the exploration of Sam's unique abilities and how the reader character interacts with them. For example, his ability to sense BTs or his connection to the chiral network. Fanfictions might have the reader being in awe of these abilities at first and then gradually becoming an important part of Sam's life as they both navigate the world together, whether it's through helping him with his deliveries or just being a source of emotional support.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can simply search for 'Sam Porter Bridges x Reader' in the search bar. Another option is Fanfiction.net, though AO3 generally has a more diverse and inclusive range of works.
Another theme is the relationship dynamic. Often, it's about the reader being drawn to Sam's unique and somewhat menacing charm. The fanfics might explore how the reader navigates their feelings for this rather unusual character. It could involve a slow - burn romance where the reader gradually discovers more about Sam beneath his spooky exterior. There's also the theme of Halloween and the traditions within the Trick r Treat universe that are often incorporated into the story, like the rules of Halloween that Sam enforces and how the reader either abides by or challenges them.
Adventure is a very common theme. Since the Uncharted series is all about exploration and treasure - hunting, these fanfictions often include the reader joining Sam on his exciting adventures. Another common theme is romance, of course, as it's a Sam Drake x Reader pairing. There's also the theme of mystery, with the characters trying to solve ancient puzzles and uncover secrets.
There are often themes related to music, given Sam's love for it. Maybe Sam writes a song for the reader, or they form a band together. Another common theme is overcoming challenges. It could be something like dealing with a difficult neighbor or a natural disaster in the Valley. Through these challenges, Sam and the reader support each other and their relationship deepens.
Friendship is a common theme. Often, Sam and Spencer start as friends and then their relationship evolves into something more. Another theme is self - discovery. As they interact, they learn more about themselves. For example, Sam might discover a new hobby through Spencer.
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.