American farmers need to rely on the American people to find a market. That might mean changing crops that are marketable to No GMO markets.
The other option is to market to allies, especially Mexico. NAFTA is still in force, so farmers could look to their own resourcefulness and bring on their own commodity brokers to move their crops. Brokers can be found within the trucking industry, especially the independents. The Brokers may be able to bring suppliers and customers together.
Set up a resource website that farmers can list their crops and what is in their silos. A broker can then log into the site and link demand to supplies. It might mean working with truckers to move the crop, but, self-reliance is what farming is all about.