A great Rickon Stark fanfiction idea could be a time - travel one. Rickon somehow travels back in time and is able to change certain events that led to the downfall of his family. He uses his knowledge of the future to make different decisions and alliances, which ultimately changes the fate of the Starks.
One interesting Rickon Stark fanfiction could be where he survives and returns to reclaim Winterfell in a more powerful way. He might have been trained by some secret group during his time away, and he comes back with new skills and knowledge.
Arya Stark could also be a good pairing. They could team up and take revenge on those who wronged their family. Arya's skills and Rickon's new - found strength could make them a formidable duo in the fanfiction world.
There are fanfictions where Jon Stark travels back in time. In this scenario, he uses his knowledge of future events to change the course of history in Westeros. For example, he might prevent certain tragedies from happening to his family. He could also use his knowledge to outwit his enemies and gain more power and influence. It's a really cool concept that many fanfiction writers explore.
One type of fanfiction could be about Catelyn Stark's backstory that wasn't fully explored in the original series. It could show her growing up, her early days of marriage, and how she developed her strong will. Maybe it delves into her relationship with her family members before the events of the main story, like her parents and siblings, and how that influenced the person she became in Game of Thrones.
There could be a fanfiction where Arya is gagged during a tense situation in a secret mission. Her struggle to free herself and still complete her task would be a great plot. For example, she could use her wits and knowledge of the environment to signal for help or find a way to remove the gag secretly.
One interesting Stark fanfiction could be about Arya's adventures beyond what we saw in the show. Maybe she travels to a far - off land and uses her skills to become a legend there. Another could focus on Sansa ruling Winterfell in a more peaceful time, building it up into a prosperous stronghold. And there might be a fanfiction where Bran uses his powers to prevent some of the tragedies that befell the Starks in the original series.
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.
One interesting Viserys fanfiction could be one that explores his early days before the events of the show. It might show his relationship with his family in more depth. For example, how he interacted with his siblings and what his dreams were for the future of his house. Another could be a fanfiction where Viserys survives and has to face the consequences of his actions in a different way, perhaps learning from his mistakes and trying to redeem himself. A third could be a fanfiction that delves into a romantic relationship for Viserys that was never explored in the original series, giving a new dimension to his character.
One interesting 'Dragonstone' fanfiction could be about the secrets hidden within the castle before the events of the main series. Maybe it focuses on an unknown Targaryen who once lived there and left behind clues to a powerful weapon or magic.
Another type of fanfiction could focus on the origin of the dragons. It might explore how they were created, perhaps by an ancient and forgotten magic. This could involve delving into the history of Valyria and the secrets that led to the birth of these magnificent beasts.
One interesting Tywin fanfiction could be one that delves into his early years and how he rose to power. It might explore his relationships with his father and the events that shaped his cold and calculating nature.