One idea could be to create a male OC who is a young warrior from a far - off land. He comes to Asgard seeking to prove himself and catches Thor's attention. They could go on a quest together to defeat a powerful dark magic that is threatening Asgard. The OC's unique fighting style, perhaps influenced by his own land's martial arts, could be a key factor in their victory.
A more complex idea would be to have a male OC who is a half - Asgardian, half - something else (like a Frost Giant). He has been living in secrecy, ashamed of his heritage. Thor stumbles upon him during a mission and at first is distrustful. But as they face challenges together, they learn to trust each other. The fanfiction could explore themes of identity, acceptance, and friendship between the two characters.
Another way to do this crossover is to have a prophecy that links Percy and Thor. The prophecy could say that only by the combined might of the son of Poseidon and the God of Thunder can a great evil be stopped. This evil could be a new kind of monster that has the ability to absorb both Greek and Norse magic. Percy and Thor would have to overcome their differences quickly. They would travel to different realms, both Greek and Norse, to gather items or allies needed to defeat this monster. Along the way, they would face many challenges and grow to respect each other.
One idea could be a crossover with Crash Bandicoot. Spyro could find himself in Crash's world, facing the same villains Crash does. They could team up to defeat Dr. Neo Cortex who has some evil plan involving both their worlds. This would bring a lot of action and humor as the two very different characters interact.
One idea could be a crossover with Ezio Auditore. They could team up to face a new, powerful Templar threat that spans across different time periods. Imagine the two assassins sharing their unique skills and knowledge.
Gohan could also time - travel to a point in Saiyan history. He might witness the destruction of Planet Vegeta and try to save some of the Saiyans. This would completely change the course of the Saiyan race and his own story. He'd have to deal with the cultural differences and the power - hungry nature of some of the Saiyans he saves.
In a fanfiction crossover, they could end up in each other's universes by accident. Ben finds himself in a world full of EVOs and has to rely on Rex to get back home. Meanwhile, Rex is intrigued by the Omnitrix and tries to figure out how it works. They face many challenges together, like dealing with Rex's old enemies who see Ben as a new target.
One idea could be to create a female OC who is a transfer student from another country. She could have a unique digimon partner, like a Digimon that is not very common in the Digimon Adventure 02 world. For example, a Floramon that has some special powers related to healing and nature. Her personality could be shy at first but as she bonds with the DigiDestined, she becomes more confident.
A possible plot for this fanfiction could be that the Son of Thor is on a quest to retrieve a powerful artifact that has been lost in the world of Percy Jackson. Along the way, he teams up with various characters. He might have to deal with the cultural differences between the Norse and Greek ways. For example, the way they approach magic or combat. His interactions with other demigods could be filled with misunderstandings at first, but as they journey together, they come to understand and rely on each other. This could also lead to some interesting crossovers in powers and strategies.
To develop a believable male OC in Thor fanfiction, start with his backstory. Where is he from? What kind of family does he have? For example, if he's from a small village on Midgard, his values might be different from those in Asgard. His skills should also be well - thought - out. If he's a great archer, explain how he learned that skill, like being taught by his father who was also an archer.
One common theme is friendship. Often, the male OC and Thor start as acquaintances and develop a strong bond of friendship over time, facing various challenges together.
Perhaps in a fanfiction, Bruce Banner discovers a new form of science that can enhance Thor's powers even more. Thor, in turn, helps Bruce understand the Asgardian view of the universe, which gives Bruce new insights into his own work. This could lead to a series of events where they team up against a common enemy that is a threat to both Earth and Asgard.