Stannis could develop into a more flexible character. Without the marriage to Selyse, he is not tied to her extreme religious beliefs. This might make him more approachable to his followers and potential allies. He could start to listen to different opinions and be less rigid in his decision - making process.
In this fanfiction scenario, Stannis may also develop new friendships. He was always a bit of a loner in the original story. Without Selyse, he could be more open to forming bonds with people outside of his usual circle. This could include characters from different social classes or even different regions. These new relationships could expose him to new ideas and ways of thinking, which would further shape his character.
In a fanfiction where Stannis isn't married to Selyse, he may have a chance at a more romantic relationship. Maybe he meets a commoner who has a unique skill or knowledge that intrigues him. This relationship could humanize him more, as opposed to his rather cold and duty - bound persona in the original story. They could go on adventures together, and this commoner could even help him in his quest for the throne in unexpected ways.
In fanfiction, the relationship between Stannis Baratheon and Sansa can be quite complex. Some fanfictions might explore a political alliance between them. Stannis, being a rather stern and duty - bound character, could see Sansa as a valuable asset in his quest for the Iron Throne. Sansa, on the other hand, might initially be cautious but could gradually come to respect Stannis' sense of justice.
The interaction between them in fanfiction can be significant as it brings together two characters with very different storylines in the original series. It can offer new perspectives on the power dynamics in Westeros. For example, Stannis is a claimant to the throne and Sansa has ties to the previous ruling family. Their coming together can be a symbol of a new order emerging.
To develop the character realistically, start with his relationship with Stannis. Given Stannis's stern nature, the OC might be under a lot of pressure to be perfect. He could be constantly striving to meet his father's high standards, which could lead to insecurities. Also, consider his upbringing in the Baratheon household. He would be exposed to the politics and power plays from a young age, so he should be politically astute and aware of the importance of alliances.
In fanfiction, if Stannis Baratheon were to marry a Tyrell, it could potentially change the entire political landscape. Stannis is known for his strict sense of justice and the Tyrells are a powerful family. Their union might bring a new era of stability or it could be a union filled with political intrigue as both sides have their own agendas and loyalties.
One challenge could be the difference in their values. Stannis is all about honor and duty, while the Tyrells are more focused on power and influence. This could lead to constant disagreements within the marriage.
Another theme is exploring his character development. Time travel allows Stannis to be put in different situations and interact with different people from different times. This shows how his character can adapt or remain steadfast in his beliefs. It gives a deeper understanding of what makes him tick. In some fanfics, he may also learn about new forms of magic or knowledge during his travels which further shape his character.
One great Stannis Baratheon marries OC fanfiction is 'The Queen by the Sea'. It beautifully weaves a story of how an original character fits into Stannis's world. The author does an excellent job of portraying Stannis's character as we know it from the original series, while also developing the OC in a believable way.
A common theme is redemption. Often, the OC helps Stannis find a new path, away from his more ruthless tendencies. For example, in some fanfics, the OC encourages him to show more mercy. Another theme is power dynamics. Since Stannis is a powerful figure, the relationship with the OC often explores how power is shared or negotiated.
One great Stannis Baratheon time travel fanfiction is 'A King's Redemption in Time'. In it, Stannis travels back to key moments in his past and tries to change things for the better. It's really interesting to see how his knowledge of future events affects his decisions in the past.