Theon Greyjoy also has his own side stories that are quite important. His time with the Ironborn and his struggle between his loyalty to his family and what he has learned from the Starks is really complex. We see his character development in a different light through these side stories.
One interesting plotline could be the backstory of the Faceless Men in the side stories. Their mysterious origin and their training methods are really fascinating.
There's also a possibility that Itachi would remain neutral for a long time. He would observe the different players in the Game of Thrones, much like he observed the events in the Naruto world. Only when he sees a real threat to the greater good would he choose a side.
There are often new characters introduced in side stories. For example, Dunk and Egg are significant ones. Dunk is a hedge knight with his own code of honor, and Egg is actually Aegon V Targaryen in disguise. Their adventures in the side story add more depth to the complex world of Westeros, showing different aspects of chivalry, power struggles, and the life of the common folk compared to the main series.
When Ned Stark was beheaded. He was presented as one of the main protagonists, and his sudden death was a huge shock. It made viewers realize that no one was really safe in the Game of Thrones world.
Arya Stark for sure. She's a badass. Starting as a young girl, she endures so much and transforms into a skilled assassin. Her journey from a naive child to a vengeful killer is captivating.
Merlin could side with Jon Snow. Jon is a man of honor, much like Merlin himself. They both have a sense of duty towards protecting the realm. Merlin could use his magic to help Jon in his battles against the White Walkers, for instance, by creating magical barriers or enhancing the strength of Jon's army.
The side story also adds to the lore by showing the relationships between different regions and cultures. We get to see how the Free Cities interact with Westeros in more detail, or how the Dothraki culture developed over time. This broader understanding of the world outside of the main plotlines in 'Game of Thrones' helps to build a more comprehensive and immersive lore.
Tyrion Lannister is one of the most impactful characters in Game of Thrones. Despite being a dwarf in a world that often shunned those with physical differences, he used his intelligence and wit to navigate the dangerous political landscape. His story is about defying expectations and finding his place in a cruel world.
The Red Wedding is definitely one of the top stories. It was a brutal and unexpected event where many of the Stark allies were massacred. Also, the Night King's threat and the battle against the White Walkers was a crucial top story. It involved all the kingdoms having to put aside their differences at times to face this common enemy. Then there's Tyrion Lannister's journey, his struggles within his own family and his cleverness in surviving and influencing events.