One plot idea could be that Daenerys and Arya meet on the road. Arya, being the assassin she is, is initially suspicious of Daenerys. But as they start talking, they realize they both have a common goal of bringing justice to Westeros. Daenerys offers Arya a position in her court, which Arya hesitantly accepts. Together, they plan to take down the corrupt lords and make Westeros a better place.
Daenerys could influence Arya's story arc by providing her with a new perspective on power. Arya has mainly been focused on personal vengeance, but Daenerys' grand vision of ruling Westeros might make Arya think about the bigger picture. For example, instead of just killing the people on her list, she could start thinking about how to change the system that allowed those people to be corrupt in the first place.
You can start by looking on fanfiction websites like Archive of Our Own. There are tons of 'Game of Thrones' fanfictions there, especially ones focused on Daenerys. Just search for her name and you'll get a long list of stories to choose from.
One great 'Game of Thrones Daenerys Fanfiction' is 'A Dragon's Heart'. It really delves into Daenerys' character, showing her growth and her inner struggles in a very detailed way. The author does an amazing job of creating new scenarios that feel like they could be part of the original series.
Arya and Tywin could also interact in a more unexpected way. Maybe in a situation where they are forced to work together for a short time due to some external threat. During this time, Arya has to constantly remind herself of her ultimate goal of revenge while Tywin is constantly on guard against her, yet also seeing potential in her skills for his own purposes.
Fanfiction that refers to a character as a 'whore' is inappropriate and unethical. Daenerys is a complex and powerful character in 'Game of Thrones'. Reducing her to such a derogatory term in fanfiction is disrespectful to the character and the fans who appreciate her character development and story arc.
In many fanfictions, Daenerys and Yara could form a powerful alliance. Daenerys has her dragons and a claim to the Iron Throne, while Yara is a fierce Ironborn. They might combine their forces, with Yara's naval skills and Daenerys' military might. Their relationship could also be one of mutual respect, as they are both strong female characters in a male - dominated world. They could exchange ideas on leadership and how to rule over different peoples.
There are some that explore the relationships around her during this time. Her advisors might have different opinions on how to protect her and the unborn child. And her dragons could also play interesting roles, like being extra protective of her in a more sentient way than in the original series.
One great fanfiction is 'The Sisters' Reunion'. It beautifully explores Arya and Sansa's relationship after their long separation. It shows how they learn to trust and rely on each other again, with vivid descriptions of the Westerosi setting.
There's also 'Sansa and Arya's New Adventures'. In this fanfiction, they embark on a journey across the Seven Kingdoms to discover secrets about their family. Along the way, they encounter old enemies and make new allies. It's full of action and the exploration of their sisterly bond.