One interesting Bran Stark OC fanfiction could be where an OC is a healer who helps Bran understand his new powers better. They could go on adventures in the mystical parts of Westeros together.
There might be a fanfiction where an OC is a time - traveling character who meets Bran. This OC could give Bran insights about the future and how to use his abilities to prevent disasters. The story could be filled with twists as they try to change the course of events in Westeros.
One interesting King Kong OC fanfiction could be about a new character who is a scientist. This scientist tries to communicate with King Kong using unique methods. Maybe they use some sort of advanced technology to understand his behavior better.
One interesting Captain Hook OC fanfiction could be where an OC is a mermaid who befriends Captain Hook. She might use her underwater knowledge to help him in his quests, while also trying to change his villainous ways. It adds a new dynamic to the traditional Peter Pan story.
A great oc fanfiction concept could be an original character who is a member of a secret alchemist society that has been observing the events in Amestris from the shadows. This oc could have inside knowledge about certain mysteries in the 'Fullmetal Alchemist' world and gradually reveals this knowledge to the main characters as they get involved in the story.
Another type of 'Man of Steel' OC fanfiction is one where the OC is an alien from a planet other than Krypton. This alien has a unique power set and comes to Earth for various reasons. Maybe they initially see Superman as a threat but then come to realize they can work together to protect the galaxy. This creates a whole new dynamic in the 'Man of Steel' universe as they combine their different abilities and cultures.
Another great OC could be a Stark - like character who is not actually related by blood but was adopted into the family. They might have a strong sense of loyalty to the Starks and be involved in the political intrigues of the North. They could be a key player in battles, using their own unique battle tactics that they brought from their previous life before being adopted.
There are fanfictions where an OC is a pirate from a new island with a very different culture. This OC might have a weapon or fighting style inspired by that culture. For example, they could use a special type of flute that can control the movements of enemies, which is a traditional weapon on their island. They cross paths with the Straw Hats and end up joining them on their journey for a while.
One interesting 'Mass Effect' Godlike OC fanfiction could be about an OC with superhuman combat skills. They might be able to single - handedly take on entire groups of enemies. Another could focus on a Godlike OC with psychic powers that are far beyond what is normal in the Mass Effect universe. For example, they can control the minds of multiple species at once.
One interesting 'Watchmen Sally Jupiter' OC fanfiction could be one that explores her early days as a hero. It might focus on her training and how she dealt with the male - dominated superhero world at that time.
One popular Bran Stark fan fiction might be those that explore his journey in mastering his warging abilities further. For example, there could be stories where he uses his powers to communicate with ancient spirits of the North, uncovering long - lost secrets about his family's past and the history of Westeros.
Another good one is 'The Gotham Enigma'. The OC in this fanfiction is a brilliant detective with a troubled past. The author does an excellent job of weaving the character into the existing Batman lore, with the OC solving cases alongside Batman and bringing a different perspective to the Dark Knight's crime - fighting methods.