One common theme is the OC being a sidekick or partner to Blue Beetle in his superhero adventures. Another is a romantic relationship developing between the OC and Blue Beetle.
One common theme is adventure. The reader often gets caught up in Blue Beetle's exciting superhero world. Another is romance, as the relationship between the reader and Blue Beetle is a central focus. And there's also the theme of self - discovery, where both the reader and Blue Beetle might learn something about themselves through their interactions.
One great OC Blue Beetle fanfiction could be 'The New Blue Beetle's Adventure'. It might explore how an original character interacts with the Blue Beetle's world, like facing off against the same villains and making new allies. Another could be 'OC in Blue Beetle's Team' which focuses on an OC joining the Blue Beetle's fight for justice in a unique way.
A common theme is adventure. Since Blue Beetle is often involved in heroic deeds, the reader gets to be part of those exciting adventures in the fanfic.
Adventure is also prevalent. Writers often send them on various missions together. For example, they could be on a quest to stop a new super - villain that's causing chaos in the city. These adventures allow the characters to show off their powers and personalities, and also give room for their relationship to develop further.
The idea of Blue Beetle's origin story is also a common theme. Writers might expand on it, or give it a different twist. For example, they might explore how he got the Scarab in more detail. His growth as a hero, both in terms of his powers and his character, is also often written about. He starts as a bit of an outsider in Young Justice, so his journey to fit in and become a respected member is a popular topic.
Well, there are themes related to discovery. Characters may discover new things about themselves, their powers, or the other world they encounter. And there's also the theme of adaptation. How do the characters adapt to the new rules and cultures of the other universe? For instance, a Blue Beetle character in Hogwarts would have to adapt to the magical society's norms and vice versa.
Another theme is his relationships, like his family relationships. His family often plays an important role in fanfics, as they are a big part of his life in the original story. And of course, there are also romantic relationships explored in many fanfics, whether it's a new character or an existing one from the Blue Beetle universe.
Love and friendship are also big themes. The relationship between Rin and the OC can range from a slow - burning friendship that turns into love, to an instant attraction. In many stories, they support each other through difficult times, like when facing powerful demons or dealing with the politics within the exorcist community.
There are Blue Beetle fanfictions that focus on his training. It could show how he hones his skills under different mentors or in unique training environments. One might be set in a virtual reality where he has to face his worst fears in order to become stronger. Another type of fanfiction could be a crossover. For instance, Blue Beetle teams up with the Teen Titans. In this story, he has to adjust to their team dynamics while also contributing his own unique abilities to fight a common enemy.
You can start by looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. AO3 has a wide range of fanfiction, and you can use the search function to specifically look for Blue Beetle x OC stories. FanFiction.net also has a large collection, but the quality can vary more. Another option is to check out Tumblr, as some users post or reblog fanfiction there.