Ask a Sustainable Agriculture Expert
Food service doesn’t happen without agriculture, so it’s probably worth investigating the links in the food chain to see if there’s something useful. Fortunately, the US Federal Government appropriated funds to let the National Center for Appropriate Technology continue to operate the National Sustainable Agriculture Information Service.
This means you still have an opportunity to ask an expert.
Previous answers discuss turkey, quail, mushrooms, dairy, hogs, persimmon, cherries, sugarcane, cheese making, pomegranate, alligator and much, much more.
If you are trying to source sustainable and/or organic food, the National Sustainable Agriculture Information Service has a vast library of material available.