There are often fanfictions where Dean has a special bond with a dragon. For example, a story could be centered around how Dean discovers a dragon egg, nurtures it, and as the dragon grows, they form an unbreakable friendship that helps Dean in his quests, whether it's hunting supernatural beings or saving a certain realm.
Some Tumblr blogs are dedicated to sharing and promoting fanfictions. You can search for tags related to dragon dean fanfiction on Tumblr. However, the content there might be a bit more scattered compared to the dedicated fanfiction websites, but it can still lead you to some really interesting and unique stories.
In this 'dean becomes a dragon supernatural fanfiction', it could start with Dean being in a fight with a powerful demon. During the battle, the demon casts a spell that backfires and instead of killing Dean, it turns him into a dragon. Dean then has to deal with the fact that he is no longer fully human. He may have to hide from other hunters who might see him as a threat. Meanwhile, he tries to figure out how to use his new dragon abilities to continue his fight against the supernatural, all while trying to find a way to turn back to his normal self.
It could be a dragon hunter who sees Dean as a dangerous abomination. This hunter might have a personal vendetta against dragons and doesn't care that Dean was once human.
Dean is likely a character who has some sort of relationship with Harry within the context of the fanfiction. He could be a classmate or a fellow wizard. He might be someone who has certain qualities or achievements that make Harry jealous.
His complex personality. He can be tough as nails on the outside, but he has a soft heart. Fanfiction writers love to explore this contrast, showing his vulnerability when he's alone or dealing with personal issues.
Dean would probably be extremely confused at first. He might stand there, staring at his car with a bewildered look on his face, muttering things like 'This can't be real'.
Fanfiction explores Dean's emotional growth in various ways. One way is through his relationships. For instance, his relationship with Sam is often delved into deeper. In some fanfics, Dean learns to be more open and honest with Sam about his feelings, which is a big step in his emotional growth as he was always the more closed - off one. His romantic relationships also play a part. If he's in a relationship with a character, he has to learn to communicate on an emotional level that he may not have been used to before.
This situation in fanfiction can add complexity to Dean's character. When he is in a dominated role, it allows for a new perspective on his reactions, emotions, and relationships. It could also suggest that he has qualities that can be both strong and yielding, depending on how the fanfiction is written. For example, it might show his adaptability in different situations, which could be an interesting addition to his character portrayal.
Another excellent fanfiction is 'Heaven's Gatekeepers'. This one plays with the idea of their roles in the grand scheme of things in the Supernatural universe. It has a great plot that weaves in and out of canon events, and the way it portrays Dean and Castiel's connection is both unique and captivating.