If I understand the request, this knife is dedicated for on-screen use? Not EDC?
For YouTube I think you’d want something with a unique, eye-catching but legal action. An obvious choice would be a Kershaw E.T., but they’re ridiculously expensive now.
You can still find the CRKT Fulcrum 2 and Snap Lock. Those might look neat to whip out on a video. The Shrade Viper Side Assist is a crappy knife but is definitely unique. CRKT Rollock has cool action too, but are getting hard find.
Barring any of those, check out some of the imported Kershaws with Speedsafe. The Atmos and Misdirect are a couple that come to mind. Snappy action with decent looks. For a full manual, check out the Fraxion.
Good luck.