Well, many fanfics focus on Reid's fight against the stigma associated with schizophrenia. He is a brilliant agent, and the idea that his mind could be 'broken' in this way is something he has to deal with. Also, his attempts to manage his symptoms while still being able to contribute to the BAU's cases are often explored in great detail. For instance, how he copes with the stress of a case when his schizophrenia might be flaring up.
One really interesting fanfic is 'The Schizophrenic Struggles of Spencer Reid'. It delves deep into how Reid might cope with schizophrenia while still being part of the BAU. The author does a great job of showing his internal battles and how his team members support him.
One common theme is the 'opposites attract' scenario. For example, Reid, with his intellectual and often reserved nature, might be paired with a more outgoing and spontaneous character. Another theme is 'overcoming trauma together'. Given the dark nature of the Criminal Minds world, both Reid and his love interest might have to deal with the emotional scars from cases, and their relationship helps them heal.
One common theme is the team's reaction. They are like a family, so when Reid is shot, it shows their loyalty and how they come together to support him.
One common theme is love. Their relationship was a form of love that was different from the usual romantic relationships in the show. Another theme is loss, as Maeve was taken away from Reid. In fanfic, this loss is often explored in depth, like how Reid tries to move on. Also, the theme of intellectual connection is common. They were two intelligent people who could understand each other's minds.
One common plot element is Reid using his vast knowledge to try and escape. He might analyze the behavior of his kidnapper, looking for patterns or weaknesses. Another is the emotional turmoil of the BAU team, especially his close friends like Garcia and Morgan.
Spencer Reid, the brilliant mind in Criminal Minds, could meet a forensic scientist in the story. They start off as colleagues, sharing their insights on cases. Slowly, Reid finds himself drawn to her intelligence and kindness. One day, after a particularly tough case, he finally musters the courage to ask her out for coffee. Their relationship blossoms as they discuss books, their shared love for knowledge, and of course, the intricacies of criminal profiling.
One common theme is Reid's vulnerability. Fans often explore how his intelligence and unique personality can make him a target in different ways. For instance, in some fics, his prodigious memory might be used against him, leading to his emotional or physical hurt.
One common theme is Reid's struggle to escape using his intellect. He might analyze his kidnapper's behavior and the environment to find a way out.
Another theme is Reid's own personal growth during the ordeal. He may face his fears, or learn something new about himself. For example, in some fanfictions, he discovers a new level of strength or resilience that he didn't know he had while being kidnapped.
One common theme is Reid's vulnerability. In the show, he's often seen as this super - intelligent agent, but in hospital fanfics, he's in a weakened state. Another theme is the support from his team. His colleagues like Morgan, JJ, and Garcia usually come to his side, showing their care and friendship. And often, there's a theme of Reid reflecting on his life and cases while lying in the hospital bed, which gives a chance for some deep character exploration.