Well, given their different backgrounds, their relationship development could be a bit rocky at first. Jon's upbringing in the North makes him more down - to - earth and practical. Rhaenys, as a Targaryen, may have grander and more ambitious ideas. However, they could find common ground in their desire for a better Westeros. For example, Jon wants to protect the North and all of Westeros from the threats beyond the Wall, while Rhaenys may want to reclaim the Iron Throne for the Targaryens. As they work towards these goals together, they could start to respect and love each other.
One possibility could be that in the fanfic, Jon and Rhaenys form an alliance to take on the common enemies in Westeros. They might realize that their combined strengths, Jon's leadership skills and Rhaenys' claim to the throne, could be a powerful force. This could lead to them gathering support from different houses and ultimately changing the power dynamics in the Seven Kingdoms.
The story might start with Rhaenys seeking Jon out. She has heard tales of his deeds and believes he can be an asset in her quest for the throne. As they join forces, they face many challenges. There could be battles against other claimants, as well as internal struggles within their own alliance. Jon and Rhaenys would have to learn to trust each other fully, which could be a slow and difficult process, but as they do, their story could lead to a new chapter in the history of Westeros.
One possible plotline could be that they meet in a secret location. Maybe Rhaenys is on a mission and Jon stumbles upon her. They initially distrust each other due to the complex political situation in Westeros. But as they start to talk, they realize they have more in common than they thought. They both have a sense of justice and a desire to see the realm in a better state. This could lead to them forming an alliance and working together to face the various threats in Westeros.
He could develop a more overbearing sense of responsibility. Since he has these great powers, he may feel that it's entirely on him to save Westeros from all threats, whether it's the White Walkers or the power - hungry lords. This could lead to him making some tough decisions that not everyone will agree with.
In fanfic, the relationship between Jon and Sansa can be quite complex. Often, they are reunited after a long time apart. Their bond is strengthened by the shared goal of protecting their family's legacy. They rely on each other's strengths, with Jon's military experience and Sansa's political acumen.
Their relationship could be developed differently by having more open communication from the start. In the show, there were a lot of secrets between them. If in the fanfic, they were completely honest with each other right away, it would change the dynamic. For example, Jon could immediately tell Daenerys about his true parentage, and Daenerys could share her insecurities about ruling Westeros.
Some fanfictions focus on changing Jon's relationships. For example, they might create a closer bond between Jon and Sansa or Arya in ways that the show didn't explore. Others may change his backstory, like giving him a different mother or father figure. Many also give him new powers or abilities, such as enhanced combat skills or magical powers.
I really like the fanfic 'Jon Targaryen: Fire and Ice Reborn'. It shows Jon not only as a powerful Targaryen but also as a character who is trying to balance the power of his dragon blood with his Stark upbringing. The author does an excellent job of creating new storylines that still feel true to the original 'Game of Thrones' world.
I really like 'Jon and Dany: The Unlikely Alliance'. This fanfic delves into how Jon and Dany might work together against the common threats in Westeros. It has some great action scenes and also explores their emotional bond. It gives more depth to their relationship compared to what we saw in the series at times. It's a great read for fans who wanted more of their interactions.
Sansa, on the other hand, might have a more complex relationship. She has her own ideas about ruling and the North. Initially, she might be cautious about the baby, but over time, she could come to see it as a symbol of unity for all of Westeros and work towards building a relationship with it for the greater good of the realm.