Some spreads list up to 20 ranked movie suggestions but pay attention to the rare or unique combinations listing none if you're looking for unusual story ideas. All cards have properties explained in the first pages. The major arcana are powerful and tend to narrow down movie lists. They have more properties than minor arcana, which offer broader results.
This tool tells you what kind of movies have rarely or never been made and warns you about saturated niches. In theory, for every film listing, the lower the frequency indicator, the more unique the concept. If you get no results, you should probably write that story.
These writing prompts are based on about 3000 horror and horror-adjacent movies I've reviewed and rated.