Probably most of the builders and investors in the cryptocurrency space have one thing in common — an entrepreneurial background; so probably an entrepreneurship course?

Even if you don't want to focus on the nontechnical side though, getting the technical basics will definitely benefit A LOT though. I personally put myself in this category too(with more focus on the economic/business side), and not like super technically inclined like my ChipMixer colleagues, but I think I know enough of the technicals to explain things to the laypeople.

Also, not economics in general, but probably also look into Austrian economics. Check out Mises: https://mises.org/