Probably quicker to recreate it from scratch than spend lots of time scrolling through that public database looked for the perfect one that's more likely than not indexed incorrectly and thus effectively unfindable.
check with a public database first if there is already something for you to use
That's from the old world. Think of it like, why would the kids post-Napster flip through an album store? They wouldn't and they didn't. We had to flip through databases of stock images because we couldn't conjure up whatever we wanted instantly before.
If you generate videos that are then sitting in some walled garden why not make them available for others to use.
I am pretty sure there are endless hours of similar videos in all accounts, and instead of recreating it from scratch every single time why not check with a public database first if there is already something for you to use