Read The Coffee Exporter's Guide: Third Edition https://www.un-ilibrary.org/content/books/9789213614860 Its free and will give you a good overview of the industry.

If you want to get into farming get Wintgen's Coffee - Growing, Processing, Sustainable Production: A Guidebook for Growers, Processors, Traders and Researchers, 2nd, Revised Edition https://www.wiley.com/en-us/Coffee+Growing%2C+Processing%2C+... (You will get a way cheaper from other sources).

Depending on the country you have different options. You can think about leasing it to other farmers or a cooperative. Talk to a local Specialty Coffee Roastery for a different perspective.

If you are interested in more information I could make a follow up post