Where And How To Sell Small Synthetic Datasets ?

I’m curious, is there a marketplace for individuals for selling small synthetic datasets (500 -1000 lines) ? Synthetic datasets about emotional nuance in text, Annotated by emotion, intensity, tone, register and context and handchecked by a practitioner in mental health for example? And can anyone sell datasets or do you have to be a developer to know what you’re doing/selling ? Thank you in advance for your help!