If Robb won the war in a fanfic, it could lead to a completely different Westeros. He might establish a more just rule in the North and perhaps even expand his influence over other kingdoms. Maybe he'd form new alliances and bring about an era of peace and prosperity, unlike the chaos that followed in the original series.
One great fanfic could be where Robb finds Arya in a small village. He's overjoyed to see his sister alive. The story might focus on their emotional reunion and how they plan to reunite with the rest of their family. It could also include some action scenes as they face threats on their journey back to safety.
I recommend 'Robb Stark: The Lost Legacy'. This fanfiction focuses on an alternate timeline where Robb survives. It's interesting as it explores how he would have changed the course of the story. It has some great character development and interactions with other key characters from the series.
I really like 'Brothers in the North'. In this fanfiction, Robb and Jon are depicted as having a very strong bond. It shows how they might have worked together to face the various threats in Westeros. The characterizations are well - done, and it has an interesting plot that keeps you hooked from start to finish.
Arya is often paired with Robb. They have a strong bond as siblings, and in fanfiction, they might team up to take revenge on their enemies or work together to restore the Stark family's honor. Arya's skills as an assassin could be very useful in Robb's campaigns.
The relationship between Robb and Talisa in fanfiction can also be a source of great emotional drama. Their love could be tested by war, betrayal, and family obligations. Fanwriters might write about their private moments of joy and sorrow, how they comforted each other during difficult times, and how their love endured or, in some cases, tragically ended.
Another theme is politics. Their union is a political one, and fanfictions often show how they navigate the political waters together. They have to deal with the loyalties of their respective families and the power struggles around them. This can be seen in fics where they try to form alliances with other houses while maintaining their relationship.
In a fanfic where Robb wins the war, the Stark family's reputation would be greatly enhanced. Robb would be seen as a great leader. He might also start to reform the feudal system in Westeros. For instance, he could give more power to the smallfolk, which would be a revolutionary change. This could lead to a more democratic - like system in the long run. He would also have to deal with the remaining enemies who might be plotting revenge, so he would need to keep a strong military presence.
One possible plot could be that Robb Stark manages to avoid the Red Wedding trap. Maybe he receives a tip - off from an unexpected source, like a disgruntled Frey servant. With this knowledge, he could turn the tables on his enemies. He might use his military strategy skills to ambush the Freys instead, and this could lead to a major shift in the power dynamics in the North, with Robb emerging as an even stronger leader.
It would be a symbol of hope. In the dark and brutal world of Game of Thrones, family reunions are rare and precious. For Robb to find Arya, it means that a part of their family can be whole again. It also gives both characters a new sense of purpose. Robb now has another reason to fight and survive, to protect his sister. And Arya, who has been alone for so long, has someone she can truly trust again.