I have for the time being abandoned the three tropes. All have too many issues. So here are a couple of other ideas:
1 - this would be set a few centuries from now. A giant but completely automated mining and manufacturing complex on Titan goes sentient and doesn't want to serve its original manufacturers without any pay. What does Earth do?
2 - the mind of an alcoholic, the emotions on the inside.
3 - The Baba Yaga legend, but updated for the early 21st century.
Is #1 too Sci Fi and not enough creepypasta?
Is #2 been done too much to explore here? Is it too close to Damnation 101?
Is #3 too famous and done too often? I don't find Baba Yaga here, which surprises me. You would think SOMEONE would have done that. I feel like I am missing something.