Not sure which part of the world you are in. Chances are that your local farmers dont know or care about 🌽.
Find them anyway, shake hands, build the relationship. Pay cash. With time you can show them the ways of the 🌽.
Find farmers here
https://secure.westonaprice.org/cvweb_weston/cgi-bin/utilities.dll/openpage?wrp=chapter_dir.htm
Realmilk.com