Ninja Double Stack XL Countertop Oven & Air Fryer with Pro Cook System, 12-in-1, Stainless Steel (DCT651, Amazon ASIN B0DB6B3T16)

If Sunday dinner at your house means feeding a crowd, this one is worth a look. Ninja's Double Stack XL Pro is two ovens stacked in one countertop unit, so the roast and the sides can cook at different temperatures and finish together. It air fries, bakes, broils, toasts and dehydrates (12 modes in all), fits a 4.5-pound chicken, and comes with a meat thermometer. Amazon has it at $249.99, down from a $449.99 list price, shipped and sold by Amazon with free delivery, and it was in stock as of early Sunday morning. Two things to check: it's big (about 18.6 inches deep, 16.4 inches wide and 31 pounds), so measure your counter first, and prices move, so confirm the total in your cart before you buy.