Hi Francis,
Most recently, I have discovered that some of the best crockpots are sold in Asian stores with housewares departments. I have recently been fortunate to purchase some small crocks which serve as either bowls or cookware in one of my favorite Korean stores. They have many sizes and are very reasonably priced. I don't know if you have any of those types of stores where you are located, but if not, you may try a few of the macro websites with cookware which include
www.cybernaturals.com