Fanfiction.net is another place to look. It has been around for a long time and has a vast amount of fan - created content. Just use the search function and type in 'the starks read the books fanfiction' to see if it's available.
One interesting aspect could be how the Starks' characters are portrayed in the fanfiction while reading books. Maybe they discover new knowledge or insights that change their perspectives within the story of the fanfiction.
Sansa Stark would likely be both fascinated and a bit scandalized. She's used to the more formal courtly stories, and fanfiction could range from the highly romanticized (which she might secretly enjoy) to the rather outlandish. She'd be worried about how the family is portrayed, especially after all the trials her family has been through in the official story.
Ned Stark might see himself as being misrepresented if fanfiction portrays him as less honorable. He would firmly believe in his own code of ethics and not like seeing it distorted.
One interesting aspect of 'Starks Back in Time Fanfiction' could be the different ways the Stark family members interact with their past selves. For example, Tony Stark might use his advanced knowledge to change certain events in the past, which could lead to a completely different future for the Stark family and the whole Marvel universe. It could also explore how the Starks deal with the moral implications of meddling with time.
The Starks are also very relatable. They face a great deal of hardships throughout the series, from the death of family members to political intrigue and war. Fans can easily empathize with them. In fanfiction, writers can rewrite their fates or create new adventures for them. Also, the Stark family is associated with the North, which has its own unique culture and traditions in the Game of Thrones universe. This adds another layer of fascination for fans, leading to more fanfiction centered around the Starks.
One common theme is identity. The sister has to figure out her own identity within the shadow of her famous brother. For example, in some fanfictions, she struggles with whether to use the Stark name to her advantage or make her own name independently. Also, the theme of loyalty comes up a lot. Whether it's loyalty to family, to friends, or to a cause, it plays a big part in these stories. For instance, the sister might be loyal to Tony even when his actions are controversial. And of course, the theme of heroism. The sister could be a hero in her own right, saving the day alongside Tony or in her own unique way.
One interesting Tony Starks fanfiction story could be about him creating a new type of AI that has emotions. In this story, the AI becomes like a child to him and he has to teach it right from wrong. Another could be a time - travel fanfic where Tony goes back in time to prevent some of the disasters that happened in the MCU. There are also those that focus on his relationships, like a fanfic exploring his friendship with Rhodey in more depth.
One common theme is living up to their father's legacy. Since Tony Stark was such an iconic figure, his kids often struggle with the expectations. Another theme is dealing with the fame and wealth that comes with being a Stark. For example, in many fanfictions, they have to figure out who their real friends are.
A common theme is family. The relationship between Tony and his niece is often explored, like how he takes on a parental role. Another theme is adventure. Since she's related to Tony Stark, she usually gets involved in some exciting Avengers - related adventures.