One of the challenges we’re all having moving shows from physical shows to virtual shows are things like card forces. There are ways to do them, however you’ve got to get over things like “lag” in video and comments. There are plenty of people doing the visual riffle card force, but there’s some risk with that.
Here’s a force that I’ve been doing a long time that’s 100% sure fire:
How the force works is you fan a deck and run the joker along it, someone from the audience says stop and remembers the card next to the joker. That’s your force card. The advantage this force has is that it allows people to change their mind. That overcomes any lag issue. They can say stop, then have you move the joker if it’s not exactly where they wanted you to stop.
One of the things I like about this force is how direct it is. There’s really no procedure. They say stop, and that’s where you put the joker. Look into if you need a “virtual card force“.