I appreciate your vision. The system you're talking about requires a custom mechanism. Fortunately, if you want to maintain the anonymity of your customers, it's way easier to do so with Bitcoin and nostr than with any other technology.

For instance, I built this paywall service, Zapit.live, where you can put literally any piece of content, even a link, behind a Lightning paywall. You also get your own personal wallet, and you can still maintain your anonymity. No email required!

There are also some marketplaces built on top of Nostr, you should also look into it. That will make your work way easier. 

 Which marketplaces?