[johnnyworker]

Here is an idea:

The devs of a site (or an application) are in a video call, with screen sharing or whatever is useful, with a user who has accessibility needs and is using their site/program. A bunch of other devs sit in on it, muted, just learning. Then the devs throw some money in the pot and the user who did the testing gets paid for their time. Everybody wins.

Oh, and if all participants agree, the stream is made available for subscribers, and then the user gets royalties off that, too.

Does this exist? Can someone make it?

[stemlord]

You just described what is known as "user testing". They can happen in person, like a focus group, or remotely. Companies reach out to the public for "random" users that fit the given criteria and are paid for their time. You can also use a 3rd party service who will pair you with random testers, for example https://www.usertesting.com/

[tripdout]

Not a video call but a recording made by the user, and not specifically for accessibility testing, but UserTesting is something similar like that.