There's 'Sansa's Redemption Arc'. This fanfic focuses on Sansa's journey to redeem herself and her family's name. It has some interesting plot twists where she teams up with unexpected allies to face common enemies. It's a really exciting read.
One great Sansa Stark fanfic is 'A Song of Sansa'. It delves deep into her character development post the events in the original series. It shows her growing into a strong leader, dealing with the political intrigue of Westeros in a very engaging way.
One great Sansa Stark crossover fanfiction is 'Sansa in the Wizarding World'. It imagines Sansa being transported to the Harry Potter universe. There, she uses her political acumen learned in Westeros to navigate Hogwarts' complex social hierarchies. Another is 'Sansa and the Avengers'. In this, she teams up with the Avengers, bringing her own brand of strategic thinking to their battles.
There's also 'Sansa's Lessons with Ned'. This fanfic delves into the times when Ned imparts his wisdom to Sansa. It shows how Sansa grows and learns from her father, with detailed descriptions of their interactions and the setting in Winterfell.
There's this fanfic where Naruto is transported to the world of Westeros during Sansa's time of need. He uses his chakra to sense danger and protect her. It delves into how their different personalities - Naruto's exuberant and positive nature and Sansa's more refined and politically aware self - interact and complement each other. It's a really engaging read if you can find it on the various fanfic platforms.
One popular Sansa Stark and Ramsay Bolton fanfiction is 'The North Remembers'. It delves into Sansa's complex emotions as she endures her time with Ramsay. Another is 'A Stark's Resilience' which shows how Sansa tries to outwit Ramsay in the difficult situation at the Dreadfort. There's also 'In the Shadow of the Boltons' that explores the power dynamics between them in a very interesting way.
There are some fanfictions where Harry Potter and Sansa Stark meet through some magical portal. In these stories, Sansa is often amazed by the magic in the Harry Potter universe, and Harry is intrigued by Sansa's strong will and the different kind of courage she has developed in a world without magic but full of political intrigue.
One great Sansa Stark x reader fanfiction is 'A Northern Bond' which beautifully portrays the relationship between Sansa and the reader. It has detailed descriptions of the Winterfell setting and how the two characters interact within it.
The fanfic 'Sansa's Redemption' is also quite good. It shows Sansa trying to make amends for some of the mistakes she made in the past and how she rises above the challenges and prejudices against her. It gives a fresh perspective on her character and her place in the world of Game of Thrones.
I've read one where Sansa and Jon go on a journey to find an ancient weapon that could save the North. It was full of adventure and had great character development for both of them.
One good family - friendly Sansa and Eddard Stark fanfiction could be those that focus on their relationship in the context of mentoring. For example, some stories might depict Eddard teaching Sansa about the ways of the North, its history and values. These stories often show how Sansa grows under her father's guidance and influence.
Archive of Our Own (AO3) is a great platform for 'Game of Thrones Sansa Stark fanfiction'. It has a vast collection of stories written by different authors from all over the world. There are different genres and themes available, so you can find everything from romantic Sansa - centered stories to ones that focus on her political journey.