Finding another person

So, my boyfriend has a kink of sorts. Not even sure what it’s called, but basically he wants me to find another person (man or woman, up to me) and have sex with them while it’s being recorded. This isn’t something I’m very familiar with, but we trust each other and we’ve had a couple very in depth conversations about it, and will have a couple more, but I’d like to start looking for a person. I know it can take time, especially to find basically an unpaid pornstar that we both agree on. So, three questions:

1. What’s this called? Having a name might help.

2. Where would I find such a person? Apps, websites, that sort of thing.

3. If you’ve done this, any advice?

Bc I’m posting anon I won’t be responding, but I can assure you any advice or information is helpful. Thank you!