https://www.descript.com/use-case/case-studies
Descript is the online video marketing tool you already know how to use. Whip up case study videos that are fun to watch and easy to create—just you, a...
case study videosmarketingampeasytyping
https://www.flexclip.com/create/case-study-video.html
FlexClip's free case study video maker lets you create convincing videos as marketing tools for your quick business growth. Pick a template to add your files!
case study videosmakeonlinefreetemplates