It could be a villain. The male dragon OC might hoard all the gold and treasures in the Lonely Mountain, and the dwarves and Bilbo have to figure out a way to get past it. This is similar to Smaug in the original story but with your own unique take on the dragon's character.
It could also be a guide. The dragon, with its vast knowledge of the lands around, could help Bilbo and the dwarves on their journey. It might know secret paths or the weaknesses of other enemies they will face. This would change the dynamic of the story as they now have a powerful and knowledgeable ally, albeit a dragon.
Power is a common theme. The male dragon OC often has great power, and the story may explore how he uses or misuses it. Another theme is isolation. Dragons are usually solitary creatures in Middle - earth, so the fic might deal with the dragon's feelings of loneliness. For example, in some fics, the dragon OC tries to find a place where he belongs among the other races.
He could be a bringer of gifts. Dwarves are known for their craftsmanship, so he might bring finely crafted items as Yule presents for the hobbits.
One popular 'the hobbit male dragon oc fanfiction' might be 'The Dragon's Redemption'. It often features a unique take on a male dragon in the Hobbit universe, with an interesting backstory for the original character. Another could be 'The Dragon's Bond', which delves into the relationships the male dragon OC forms within the world of Middle - earth.
The dragon demon OC can also be a reluctant ally. Maybe it has its own goals that initially seem opposed to the heroes, but as the story progresses, it realizes that working with them is the only way to achieve its deeper desires. It could bring a different perspective to the group, with its unique powers and background.
Well, they could be a mysterious figure. In the One Piece fanfiction, their dragon - shifting abilities make them stand out. They might play the role of a protector. Suppose there is a small island that is constantly under threat from pirates. The Kidd Dragon Shifter OC could decide to protect this island. Their powers would be a great deterrent. Also, they could be a character that other characters try to figure out. Their motives and background are not clear at first, and as the story progresses, other characters like Luffy and his crew get to know them better, which can add an element of mystery and intrigue to the fanfiction.
Well, start with its abilities. A male dragon OC could have the power of breathing not just fire, but also a freezing mist. In terms of how it fits into The Hobbit world, it could be a new threat that the characters have to face. You can base its behavior on real - world lizard behaviors to some extent, like being territorial. And don't forget to give it a name that reflects its fearsome nature, like 'Drakar the Terrible'.
The male OC could also be a rival to Rhaenyra. He may have his own claim to the throne or be part of a group that opposes her rule. This would create a lot of tension and conflict in the fanfiction, making for an exciting read.
Perhaps the dragon OC has the ability to transform into a human - like form. It infiltrates the company of dwarves and hobbits, initially with some ulterior motive. But as the journey progresses, it starts to care for them and uses its dragon powers secretly to aid them against various perils, creating a lot of mystery and suspense in the fanfiction.
A Hades OC can play the role of a powerful ally. With their underworld - related powers, they can assist the Avengers in dealing with threats that have a connection to the afterlife or dark magic. For example, if there's a villain raising an army of the dead, the Hades OC can use their power over the dead to stop it.
OC could also be a character from the background of one of the existing Guardians. Maybe they are an old friend from Star - Lord's past on Earth that he thought was lost. Their reunion could stir up old memories and emotions, and also introduce new plot elements such as a hidden treasure or a secret mission that only they know about.