One common theme is Matt's internal struggle with his pain. Since he's hurt, it often explores how he copes with his physical and emotional pain while still being Daredevil. Another theme is his relationships, like his friendship with Foggy or his romantic interests. How they react to his hurt state and support him is often a big part of the stories.
You can start by looking on fanfiction platforms like Archive of Our Own (AO3). It has a large collection of Daredevil fanfics. Just search for 'Daredevil Matt Hurt' and you'll get a list of relevant stories. Another option is FanFiction.net, though the tagging system there might require a bit more digging to find exactly what you're looking for.
One possible scenario in a Sister Maggie Daredevil hurt/comfort fanfiction could be Maggie finding Daredevil severely injured after a fight. She would use her faith and kind heart to comfort him, perhaps by praying over him and cleaning his wounds. This would not only heal his physical injuries but also provide some spiritual comfort to Daredevil, who often struggles with the darker aspects of his vigilantism.
Some popular themes could be Daredevil's internal struggle with his injuries. Maybe he's dealing with the physical pain that affects his crime - fighting abilities. Another theme might be the emotional hurt, like when his actions cause rifts in his relationships with friends or loved ones in the fanfiction world.
Matt could be developed as a very empathetic character. His act of holding the hurt pigeon shows his initial kindness. As the story progresses, he could become more determined to help the pigeon, showing his perseverance.
Imagine Daredevil getting poisoned. Sister Maggie takes care of him in the church. She stays by his side, wiping his brow, and talking to him softly. She tells him that he's a good man, despite the violence he sometimes has to use. This helps Daredevil deal with his own self - loathing. Her words are like a balm to his troubled soul, and as he recovers, their bond deepens.
One common theme could be the idea of rescue. Maybe Matt has to save Katie from whatever is causing her harm, which can create a lot of tension and action in the story. Another theme might be the emotional aftermath. For example, how Matt copes with seeing Katie hurt and how their relationship might change as a result.
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.
You can start by looking on fanfiction websites like Archive of Our Own. It has a large collection of Daredevil fanfictions, and you can use the search function to specifically look for ones related to Daredevil being hurt. Another option is FanFiction.net, which also has a decent number of Daredevil stories.