If she has a special ability or gift, like being a seer or having a unique connection to magic, she could use it to foresee and prevent disasters. For example, she might see a great battle coming and use her influence to try and broker peace between the warring factions. This would completely change the expected course of the story, which is often filled with bloodshed and war.
The Baratheon daughter might also be a catalyst for change in terms of the social norms of Westeros. If she advocates for the rights of women or the lower classes, she can start a movement. Imagine her using her position to speak out against the unfair treatment of smallfolk or the limitations placed on women in inheritance and leadership. This could lead to significant social unrest or reform, which would be a major shift in the story's direction.
Another plot could revolve around her discovery of a long - hidden family secret. Maybe she finds out that there is some hidden claim to the Iron Throne within her family's past. This could lead her on a journey to uncover the truth, facing many obstacles along the way, including those who want to keep the secret buried. She might have to outwit her own family members who fear the consequences of this secret getting out.
One possible fanfiction could start with Robert Baratheon as a young man. He is full of ambition and dreams of a united Westeros under his rule. He trains hard in combat, his sword becoming an extension of himself. He meets his future friends, like Ned Stark, during these formative years. They share tales around the campfire and make grand plans for the future. As he grows older, he participates in battles, his victories making him more and more renowned. His charisma draws people to him, and soon he is seen as a natural leader. But with power also comes temptation, and he has to face the challenges of politics and intrigue that come his way.
Love and loyalty also feature prominently. An OC Baratheon might be torn between loyalty to their family and their love for someone from another house. This creates a lot of internal conflict and interesting plotlines. In some stories, an OC Baratheon's loyalty to a friend or a romantic partner can change the course of events in the political landscape of Westeros.
Perhaps Cersei's son, having grown up seeing the chaos his mother caused, could bring about a new form of governance. Instead of the feudal system that was prevalent, he could introduce a more democratic - like system where the voices of the lords and the common folk are heard. This would be a huge change from the power - hungry struggles that were characteristic of the Game of Thrones world.
The male OC Baratheon could also be a bastard son who has been living in exile. He returns to Westeros with a group of loyal followers he has gathered over the years. His main goal could be to claim a small piece of land for himself and his men, but he soon realizes he has to navigate the complex web of politics and allegiances in order to survive.
Some fanfictions might focus on an alternate universe where Joffrey is not a king. He could be a simple knight, and the story could explore how his personality would develop without the power and privilege of the throne. He might learn humility and honor in a different way.
Well, one way could be through a magical portal. Imagine Naruto, with his ninja skills, suddenly appears in the world of Westeros. His abilities like shadow clones could be mistaken for some dark magic in the Game of Thrones universe. He might team up with the Baratheons, perhaps using his skills to help them in battles, especially against the White Walkers if we're thinking of a scenario where he arrives during that threat.
One great 'Game of Thrones OC Baratheon fanfiction' is 'The Baratheon Heir'. It has an interesting plot where the OC Baratheon character tries to reclaim the family's lost glory in a really engaging way.
To develop a male OC Baratheon, start with his physical appearance. Maybe he has the typical Baratheon black hair and blue eyes, but with a scar on his face from a battle. Then think about his personality. He could be proud like most Baratheons, but also have a sense of humor.
There's a fanfiction where Renly Baratheon discovers a long - lost magic that gives him the ability to communicate with the old gods. This sets him on a journey to find ancient secrets that could change the fate of Westeros. It's a really unique take on his character as it combines his political ambitions with this new magical element.