Yes, there might be some. You can try searching on fanfiction platforms like Archive of Our Own. However, make sure to check the ratings and reviews to find high - quality ones.
The uniqueness lies in the blend of different genres and universes. Naruto is a Japanese anime/manga with a focus on ninja adventures, friendship, and growth. Stark, which I assume refers to the Iron Man - like universe, is about advanced technology and superheroics. When you combine these in fanfiction and add the 'lemon' element, which might imply a more adult - oriented or intense relationship aspect, it creates a story that can be both unexpected and captivating. It allows for creative interpretations of how these characters from different backgrounds would interact in situations that are not part of their original storylines, and that's what makes it stand out.
Another concept is a fanfic where Sansa Stark is transported to the Naruto universe. She could find herself in Konoha and start learning about chakra and ninja skills. Naruto, being the friendly and curious type, would be one of the first to befriend her. He might teach her some basic ninja moves, and in return, Sansa could share her knowledge of court politics, which could be useful in the complex shinobi society.
One popular sansa stark fanfiction might be 'A New Beginning for Sansa'. It explores Sansa's character in a new light, with interesting plot twists and character development. Another could be 'Sansa's Hidden Journeys' which delves into her unspoken dreams and adventures. There's also 'Sansa and the Mysterious Stranger' that has an engaging storyline with elements of mystery and romance.
You could also ask other Game of Thrones fans directly. Maybe at a local fan meet - up or in an online chat group. They may be able to recommend some really good sansa stark fanfiction that they've come across. Additionally, checking out blogs that review fanfiction might lead you to some hidden gems.
In fanfiction, the combination could start with Sansa being intrigued by Naruto's strange appearance and abilities. She might ask him to teach her some of his skills. Naruto, being the kind - hearted person he is, agrees. As they train together, their relationship grows. Naruto could also introduce Sansa to the concept of different 'worlds' as he comes from a very different place. This could open up new storylines where Sansa tries to find a way to visit Naruto's world or they try to bring some of Naruto's world's positive elements to Westeros.
One interesting fanfiction could be where Naruto, with his ninja skills, ends up in the world of Sansa Stark. He might use his abilities to protect Sansa from the various threats in Westeros. For example, he could use his shadow clone jutsu to confuse the enemies when they are attacking Sansa's home. Another story could involve Sansa learning some of Naruto's ninja philosophies, like the idea of never giving up, which would help her be stronger in the face of all the political intrigue in the Seven Kingdoms.
To make it interesting, focus on the contrast between their worlds. Naruto is from a world of ninjas with superpowers, while Sansa is from a medieval - like world full of political intrigue. Highlight how they adapt to each other's cultures. For example, Naruto might be shocked at the backstabbing politics in Westeros, and Sansa could be amazed by the ninja abilities.
There's a fanfic titled 'Sansa's Journey' that might fall into this category. When looking for such fanfics, make sure to read the reviews first. Some fanfics may deviate too much from the original character's essence. You can also join fan communities to get more recommendations.
In 'dark Sansa Stark fanfiction', Sansa can be more assertive. Unlike in the original where she is often a victim of circumstance, here she takes charge. For instance, she might not wait for others to rescue her but actively plot her own escape and revenge.