I bought a “country living grain mill”… and it worked, I recommend an electric motor for it, I managed to hook a bicycle to it, but I found using the vitamix blender to grind grain was a better fit for me as I found replacement blades from china cheap on ebay.
Country Living can be found used on ebay, they are expensive, heavy, but awesome for long term, but take a good amount of muscle to use unless you go with an electric motor option.
I have heard good reviews on the Wondermill but more expensive than $100.00 To get a good grain mill that will last, they do cost.