Well, the theme of trauma is very prevalent. Sansa experiences a great deal of trauma at the hands of Ramsay, and many fanfictions explore how she copes with it. Revenge is also a theme. Sansa might seek revenge on Ramsay or those who allowed her to be in that situation. And the theme of hope is there too. Despite the dark situation, there is always hope for Sansa to escape or change her fate in these fanfictions.
One common theme is survival. Sansa has to find ways to survive Ramsay's brutality. Another theme is power struggle. Ramsay has power over Sansa, and she tries to regain some sort of control. Also, there's the theme of redemption in some fanfictions where Ramsay might show a glimmer of humanity or Sansa finds a way to forgive, though this is less common given Ramsay's character.
The theme of identity is often explored. Sansa has to hold on to her Stark identity while being in the clutches of Ramsay. There's also the theme of manipulation. Ramsay is a master manipulator, and Sansa has to figure out how to not be manipulated. Additionally, the theme of female empowerment can be seen as Sansa finds ways to resist Ramsay and assert herself in a male - dominated and cruel world of the Bolton regime.
Chapter 256, "Bonfire Feast", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. The chapter gives readers a real answer by opening on Turning around, Jiang Yan and Zhao Lang found their heads had been...
Chapter 332, "Start the Live Stream!", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. The chapter gives readers a real answer by opening on His hands shaking, Jiang Shixu reopened the video.
Chapter 337, "Over Two Months Pregnant", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with He Hui's eyes widened with shock. and follows through with Tang Jinyu, what do you mean?!.
Chapter 520, "Was Zheng Xun Replaced?!", is the clearest early answer because it turns Zheng Xun's situation into a concrete plot event. The chapter gives readers a real answer by opening on What did it mean that Jin Siyue had already given him all the shares?!
Chapter 136, "Jiang Li Can Actually Draw Talismans?!", is the clearest early answer because it turns Lai Fu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with A few people retraced their steps back to the place they had just...
Chapter 318, "I Shouldn't Have Given Birth to You in the First Place!", is the clearest early answer because it turns Aunt Li's situation into a concrete plot event.
Chapter 437, "A Gentleman's Revenge is Not Too Late Even After Ten Years!", is the clearest early answer because it turns Sister Li's situation into a concrete plot event.
Chapter 714, "I'm Using Voice Input", is the clearest early answer because it turns Ming Yu's situation into a concrete plot event.
Chapter 717, "Shuiyun Temple", is the clearest early answer because it turns Taoist's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li's cold gaze shot over. to This is the notebook I kept while filming..
Chapter 519, "I'm Here to Participate in the Program", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. Early on, Seeing that everyone who went to attack Jiang Li had failed....