However wide a library gets, it never covers everything. Describe the video you want to make — the outcome, not the technique — and we'll work out the camera, lighting and structure.
Be specific about the outcome
“A 15-second vertical ad for a coffee roaster” is workable. “Something cool for social” is not.
Say who it's for
The audience changes the pacing, the grade and the tone more than any other single factor.
Mention constraints
Platform, runtime, whether you have talent or products to film, what you definitely cannot show.