OP, I wish that such service would exist, but I'm afraid that it will be difficult to find what you're looking for. From what I saw during my years in crypto, there was many attempts to open Bitcoin based online marketplaces, but seems that almost all have failed and closed down. Maybe there is some nich websites without much popularity, but I wouldn't vouch on their reliability
You'll be surprised f the contrary. I'm thinking of starting updating the main post with mine and the community findings that will be listed in this thread. Ideally, with the aim to keep it maintained so people will know which tools are currently available to sell digital items and get paid in sats!