Another option could be FanFiction.net. Many fans post their works about different shows and characters there. Just use the search bar and type in 'Chicago Fire Brett and Casey' to see if there are any relevant fanfics. However, be aware that the quality and content may vary widely.
You can try looking on fanfiction websites such as Archive of Our Own (AO3). There are a large number of fan - created stories there, and you can search specifically for 'Chicago Fire Brett and Casey fanfic'.
Some fanfics focus on the challenges they face as individuals and how they support each other through those. For example, Casey dealing with his past traumas and Brett being there for him, or vice versa. There are also stories that explore their friendship evolving into something more romantic, with all the cute and angsty moments that come with it.
Fanfiction.net is also a good place to look. There are many fans who post their works there. However, the search function might be a bit trickier sometimes. You may need to use specific tags related to the characters like 'Brett', 'Antonio' and 'Chicago Fire' to narrow down the results.
You can try fanfiction.net. It has a large collection of fan - created stories, including many for Chicago Fire. Just use the search function and type in 'Chicago Fire Casey and Severide' and you'll likely find a good number of relevant fanfics.
One possibility is that Casey's injury makes him more determined. He could start training secretly while still recovering to prove he can come back stronger. This would show his strong will.
Another theme is professional growth. Fanfics might show how they learn from each other and improve their skills as firefighters. For example, Casey might teach Dawson a new technique for handling a certain type of fire, and Dawson could share her insights on dealing with victims.
In fanfic about Casey being injured in Chicago Fire, he might face various challenges. Fellow firefighters could rally around him. Maybe they'd struggle to keep the team spirit high while Casey is recovering. For example, Severide might take on extra responsibilities and feel the pressure.
One possible fanfiction could be where Matt Casey is injured during a particularly dangerous rescue operation. Maybe he gets trapped under some debris while trying to save a victim. His team members, like Severide, are desperately trying to get him out. The emotional turmoil of his friends and colleagues as they wait for the paramedics could be a major part of the story. And of course, his recovery process could involve some self - reflection and a re - evaluation of his life in the fire department.
Her close friends at the firehouse, like Casey or Severide, could be great allies. They've always been there for her, and during her pregnancy, they could offer practical help like covering for her shifts when she's not feeling well or giving her advice on dealing with the pregnancy while working. Stella could also be a strong ally as another female in the firehouse who can understand the unique challenges Brett might face.
Matt Casey is hurt while on a routine call. A beam collapses on him as he's trying to rescue a child. He's rushed to the hospital with a head injury and a broken arm. His friends at the firehouse are worried sick. Severide takes charge of the team in Casey's absence, but things don't go smoothly as they all miss Casey's leadership. Meanwhile, Casey is in and out of consciousness in the hospital, having strange dreams about his past and his future in the fire department.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works, including many Chicago Fire crossover fanfictions. Just use the search function and type in 'Chicago Fire crossover' to find relevant stories.