There are Buy American, Fair Trade, Refugee Industry etc buying guides. Has anyone assembled a Co Op? If not, I will.
To my knowledge, there are a few, fragmentary and regionally limited efforts to do something along those lines, but no comprehensive guide or website that could be or become a go-to place for cooperatives of all kinds or even of cooperatives of one kind (e.g. consumer coops, food coops, worker coops etc.). We ate democracy@work have often discussed launching such a project. If you do proceed, let us know and perhaps we can partner.