The theme of mystery often shows up. Reid's job involves solving mysteries, so in fanfiction, the meeting might be part of a larger mystery or lead to one. Friendship is a theme too. Some fanfictions explore the idea of a platonic relationship starting from the first meeting. And there's also the theme of Reid being a bit of an enigma, with the main character trying to figure him out from the moment they meet.
A common theme is the contrast between Reid's logical mind and the main character's more emotional side. This creates interesting dynamics in their meetings. The theme of protection also appears. Reid's role as an FBI agent makes it possible for him to protect the main character during their first encounter. Additionally, the theme of shared interests, such as a love for books or a particular academic subject, is often explored in these fanfictions.
One of the most popular themes is solving mysteries together. Since Reid is a genius profiler, having the reader character be involved in the crime - solving process creates an exciting dynamic.
I really like the fanfiction 'Meeting Spencer Reid on the Train'. In this story, the author does an excellent job of creating a believable scenario for their meeting. The characters' reactions are very natural. 'First Meeting with Spencer Reid' is also a great read. It focuses on the little details, like Reid's nervous tics when he first meets the protagonist. And don't forget about 'Meeting in the Rain'. The setting of a rainy day gives a very romantic and moody feel to their first encounter.
One popular trope is the 'genius and the normal'. Since Spencer Reid is a brilliant genius, it's common to see stories where the reader is an 'ordinary' person who is drawn to his intelligence. Another is the 'hurt/comfort' trope. Reid has been through a lot in the show, so fanfictions often have the reader comforting him. For example, after a tough case.
One common theme is his vulnerability. Reid is often portrayed as a brilliant but fragile character in these fanfictions. Another theme is the impact of his past traumas. His childhood and previous cases' experiences resurface to haunt him. For example, in many fanfictions, his time in prison or being kidnapped can be a recurring element.
One common theme is the struggle to balance work and family. Since Reid has such an intense job at the BAU, in these fanfictions, his married life often involves trying to be there for his family while also being away for long periods on cases.
One common theme is Reid's intellectual superiority. Fanfictions often highlight how his genius mind sets him apart from others. For example, in many stories, he's the one who cracks the most difficult parts of a case.
Romance is also a big theme. Whether it's a slow - burn or a more immediate attraction, the relationship between the female and Spencer Reid is often central. For example, they might start as colleagues and gradually develop feelings for each other over time as they solve cases together. It adds an emotional layer to the usually intense and cerebral world of Spencer Reid.
Recovery is also a big theme. The fanfics usually follow Reid's journey from being hurt to getting better. This can involve his own internal processes of dealing with the pain, as well as external factors like medical treatment and the care of his friends. It often shows his determination to get back to his normal self and continue his work in the BAU.
A common theme is Reid's unique perspective. His autistic mind gives him a different way of seeing things, which often leads to him making connections in cases that others miss. For example, in many fanfics, he notices small details in crime scenes that others overlook because of his hyper - attention to detail, which is a characteristic of autism.
One common theme is the exploration of Spencer's vulnerability. Despite his intelligence, the idea of becoming a father makes him feel out of his depth in many stories.