Ask HN: What data do people/companies pay for in various industries?

So primarily do data engineering. Sourcing, ingest, pipelines, APIs, ETL, warehousing... all that stuff. But i have pretty much just been doing it for one industry. I have seen a rise in popularity for data aggregators and data providers. It's something I know i enjoy doing and am good at it. I just don't know what data people in different fields want and would pay for. I know, the obvious answer is go out there and talk to people etc. Well, right now it's a curiosity, I don't even know what specific industry I'd be most interested in. Also, quarantines and viruses obviously limit that avenue. So i am wondering what you folks have seen in various industries and whether this avenue really has promise. Thanks in advance.