There could also be a plotline where the White Walkers were not just mindless killers. Maybe in this alternate history fanfiction, they could communicate and negotiate. This would have turned the whole concept of the fight against them on its head. The various houses might have had to make different decisions, and the politics of Westeros would have been even more complex as they tried to deal with this new aspect of the White Walkers.
One interesting plotline could be if Ned Stark had managed to expose the Lannisters' secrets early on. This would have completely changed the power dynamics in King's Landing. The Starks might have gained more influence and support, and the war that ensued in the original series might have been avoided or at least very different in nature.
One interesting plotline could be where the Starks never lose their power in the North. Instead of Ned Stark's execution, he manages to outwit his enemies and unites the North even more firmly against the Lannisters. This would change the entire power dynamic in Westeros as the North would be a much stronger force from the start.
One great alternate history 'Game of Thrones' fanfiction is 'The Dragon's Return'. It imagines a world where the Targaryens never lost their power and how different the Seven Kingdoms would be. The story is full of political intrigue and detailed descriptions of a Targaryen - dominated Westeros.
Another idea is that Arya Stark decides to explore the world beyond Westeros. She discovers new lands and cultures, and then returns to Westeros to share her knowledge. This changes the way the people of Westeros view the world outside their own continent, leading to a more open - minded society.
When it comes to Daenerys Targaryen in alternate history fanfiction, if she had landed in Westeros earlier, she would have faced different challenges. Her dragons would have been a bigger shock to the existing powers. Her character might not have had as much time to develop her leadership skills in Essos, but she would have to quickly adapt to the complex politics of Westeros. This would change how she interacts with characters like Jon Snow. Maybe they would be allies from the start instead of having the mistrust that developed in the original story.
Jon Snow is still very popular. In alternate histories, he could have different parentages that lead to unique storylines. For example, if his true Targaryen heritage was revealed earlier, he might have been more of a central figure in the fight for the throne from the start.
In some 'Game of Thrones' brothel fanfiction, there could be a plotline where a character who has lost everything finds refuge in the brothel. This character then forms unexpected alliances with the people there. The brothel becomes a place of new beginnings for this character, and through their interactions with the other denizens of the brothel, they start to plot their revenge or a way to regain their former status.
One interesting plotline could be Asher's journey to reclaim his family's honor. Maybe he teams up with unlikely allies and faces numerous challenges along the way.
One interesting plotline could be about a character who receives a mysterious call that leads them on a quest to find a long - lost Targaryen heir. This call could be from an ancient magic or a secret society within the world of Westeros.
One common plotline is a sellsword becoming involved in the power struggles between the great houses. For example, they might be hired by one house to spy on another and end up getting caught in a web of political intrigue.
Another plotline could be the bodyguard falling in love with the person they are protecting. In the world of 'Game of Thrones', love is often a dangerous and complicated thing. This could add a whole new layer of drama, especially if the person they are protecting is a high - profile figure like Daenerys or Jon Snow. The bodyguard would then have to deal with not only physical threats but also the emotional turmoil of their feelings.