Convection ovens are available from a number of stores, including Amazon, Walmart and Target. Each of these three stores provides shipping, often for free, while both Walmart and Target offer convection microwaves for sale in store or allow consumers to order online and pick up at the store.
Popular brands of convection microwaves available at these stores include Sharp, Emerson and GE. Convection microwaves are available in both countertop and above-the-range models. Amazon, Walmart and Target offer product details on their website, including microwave size, settings and power usage information to use when sorting brands and models, as well as customer reviews.