Apple now sells certified refurbished 16-inch MacBook Pros on its website, a model that was released in November 2019.
Certified Refurbished
Refurbished MacBook Pros come with a one-year warranty program, and can be extended to three years with AppleCare+. All refurbished models are 15% off the brand new models, and Apple inspects each one, cleans them, and tests them for any issues.
You can see the refurbished selection here.