There's also 'Castiel's Brokenness'. This fanfiction focuses on Castiel being hurt in a battle and his journey of recovery. It shows the complex relationship between Castiel and Dean during this difficult time, with Dean being very protective. The author does a great job of describing Castiel's pain and vulnerability.
Another good one is 'Hurt Castiel, Healing Love'. In this story, Castiel is not only physically hurt but also mentally scarred. Dean tries his best to bring him back to his old self. It's a long - form fanfiction that has many plot twists and turns, and the way it portrays Castiel's hurt is quite realistic.
One common theme is the vulnerability of Castiel. When he's hurt, it shows a side of him that's not often seen - his fragility. It makes the readers feel more sympathetic towards him.
One of the most heart - breaking ones has to be 'In the Depths of Castiel's Pain'. In this fanfic, Castiel endures so much suffering, both from external forces and his own self - loathing. The story is filled with his silent screams of agony that are almost palpable. 'When Castiel Weeps' is also a tear - jerker. It focuses on a time when Castiel is hurt so badly that he starts to question his very existence, and the emotional journey he goes through is just so sad.
A common theme is the exploration of Castiel's humanity. When he's being protective of the hurt Dean, he starts to understand human emotions like love, fear, and worry on a deeper level. This can lead to his own character development as he becomes more in tune with his human side while still maintaining his angelic essence.
There's also 'Castiel's Painful Journey'. In this fanfiction, Castiel endures a great deal of hurt due to a powerful spell that backfires on him. It details his journey of recovery and the relationships that help him through it. He has to face his own insecurities and fears as he heals, which makes for a very engaging read.
One good 'emotionally hurt Castiel fanfiction' is 'Fallen Angel's Pain' which delves deep into his inner turmoil and emotional wounds. It shows how he copes with the rejections and losses he has faced in his journey. Another one could be 'Castiel's Silent Sorrow' where his emotional distress is palpable as he struggles with his loyalty and the changing dynamics around him.
I remember reading a fanfic called 'Castiel's Wounds'. In this story, Castiel is severely injured during a battle with demons. The fic focuses on how Sam and Dean try to help him recover, and the relationship dynamics between the three are really well - written. It shows Castiel's vulnerability in a very believable way. There's also 'A World of Hurt' which explores Castiel's hurt in a post - apocalyptic setting, adding an extra layer of tension and drama.
One common theme is redemption. When Castiel is hurt, often the story will revolve around him finding a way to redeem himself, whether it's from a mistake he made that led to his pain or just from a sense of lost purpose. For example, in some fanfictions, he might have been hurt because he trusted the wrong entity and then has to make amends.
I'm not sure of specific fanfiction titles off the top of my head. But you can also try fanfiction.net. Sometimes, fan communities on platforms like Tumblr might also recommend good fanfictions on this topic. You could post a request there, saying you're looking for fanfiction where Gabriel is protective of a hurt Castiel. They might direct you to some great reads.
One common theme is isolation. Castiel often feels alone in his pain, whether it's due to his otherworldly nature or the actions of those around him. Another theme is betrayal. He is frequently betrayed in these stories, which causes him deep emotional harm. For example, when his allies turn on him or when he is misled by false friends.
The theme of Castiel being tortured, either physically or mentally, is quite prevalent. It could be at the hands of demons or other angels. And then there's the aftermath of his hurt, like his struggle to regain his strength or his faith. Also, his relationship with Dean often takes center stage during his time of hurt, with themes of Dean's protectiveness and Castiel's dependence on him.