Unfortunately, I do not believe there is one that records directly to a USB drive. Though, what you could do is have a camcorder plugged into say a laptop via a USB HDMI capture device, such as an Elgato cam link, then record the video with a capture software such as OBS (free) and have the video saved directly to a USB Drive you plug into the Laptop. So all you would need to do is plug in flash drives then hand them out and change the save directory for OBS. I hope this could work. The only downside to this is the $120 HDMI USB capture device. Also, there is a Wi-Fi SD card so you could have that in the camcorder, it is essentially the same as the method above but wireless.