Slow cookers are certainly popular—over 80 of American households have one.But the appliance has evolved over time, especially with the rise of the Instant Pot in recent years.So we re-tested and updated our own rankings of popular models.These are our 3 favorite slow cookers from amazon.com:.Best Overall Slow Cooker: Cuisinart Cook Central 4-in-1 Multi-Cooker, 7 Quart, $199.Best Pressure & Slow Cooker: Instant Pot Duo Nova Pressure Cooker, 6 Quart, $60.