Theon could be a great character to pair with Yara. Their complex relationship as siblings could be explored further. Maybe in the fanfiction, they work together to redeem the Ironborn's reputation after all the chaos caused by Euron.
Jon Snow could be an interesting character to pair with Yara. Their worlds are quite different, but perhaps in a fanfiction, they meet during a time of great need in Westeros. Maybe they join forces to fight against the White Walkers, with Yara providing naval support and Jon leading the land forces. Their different leadership styles and cultures could create some interesting dynamics.
Daenerys is also a good choice. As I mentioned before, their alliance can be the center of an exciting fanfiction. They are both strong female leaders with different strengths and goals, and seeing how they interact and support each other can make for a really engaging story.
One interesting fanfiction could be about Yara leading the Ironborn in a new conquest. Maybe she discovers a hidden island full of treasures and has to battle both external enemies and deal with internal power struggles among her own people.
Bran would be a great character to pair with Osha in fanfiction. Their relationship in the original story was interesting, and in fanfiction, it could be developed further. For example, they could go on a journey together to discover more about the ancient magic beyond the Wall.
Eddard Stark could be a great character to pair with Rickard Stark. As his son, their relationship can be explored in depth, like father - son training sessions or discussions about the future of the North.
Sansa Stark could be an interesting pairing. It could be a story of two strong - willed women from opposing sides. They could either become bitter enemies or, in a more creative take, find common ground and form an unexpected alliance. Also, Margaery Tyrell is a great character to pair with Cersei. Their power struggle in the show was fascinating, and fanfiction could take it in new directions, like Margaery actually befriending Cersei and showing her a different way to rule.
In fanfictions, pairing Viserys with Jon Snow could create some fascinating storylines. They are both characters with a claim to the throne in different ways. Their meeting could lead to discussions about leadership, honor, and the future of Westeros. Additionally, Cersei could be an unexpected but interesting pairing. The clash of their personalities and their different approaches to power could make for a very engaging story. Cersei's cunning and Viserys' pride could lead to power struggles and political maneuvers. And let's not forget about Brienne. Her sense of honor and loyalty could contrast with Viserys' more self - centered nature, and perhaps she could be the one to make him see the error of his ways and become a better person.
Samwell Tarly could be a great character to pair with Randyll. Their father - son relationship is complex and full of conflict. A fanfiction could explore how they might reconcile or further their differences in an alternate scenario.
Sansa Stark is a great choice. Their relationship in the original series was complex, and in fanfiction, it can be further explored in different ways, like a more positive or equal partnership.
Daenerys is an obvious choice. Their relationship in the original series was complex and passionate, and in fanfiction, there are so many ways to explore it further. Another good character could be Ser Jorah Mormont. His loyalty to Daenerys and his knowledge of Westeros could create interesting dynamics with Khal Drogo. And perhaps the witch Mirri Maz Duur could also be paired with him in a fanfiction that delves into the more magical and vengeful aspects of the story, exploring what could have happened if their interactions had taken a different turn.
In fanfiction, Lysa Arryn could be paired with Varys. Varys is known for his web of spies and political maneuvering. A story with them together could involve Varys trying to use Lysa for his own political ends in the Vale or Lysa trying to outwit Varys. Another great pairing could be with Brienne of Tarth. Brienne's sense of honor and Lysa's more self - serving nature could create an interesting dynamic. They could be in a situation where Brienne has to protect Lysa or Lysa has to decide whether to trust Brienne. And of course, Tyrion Lannister could be paired with her. Given Tyrion's intelligence and Lysa's paranoia, a fanfiction exploring their encounters and how they interact could be full of drama and unexpected twists.
He could be a new character created by the fanfiction writer. Maybe he's a strong and ambitious son of Greyjoy, with a desire to prove himself in the cut - throat world of Westeros, much like the other Greyjoy characters we know from the original series.