One great Loid x Yor fanfic is 'A Spy's Heart'. It delves into the deeper emotions of Loid as he starts to truly care for Yor beyond their fake marriage setup. It shows his internal struggle between his mission and his growing feelings.
Another scenario could be that Data faints as a result of overloading his emotional subroutines. He's been trying to experience emotions more deeply and it becomes too much for his current programming. This would open up a story about how the crew helps him manage and understand his emotions better, and how they deal with this new vulnerability of Data.