Apple MacBook Pro Retina 15-inch Late 2013, 16GB ram, macOS Monterey, Bad Screen | eBay
Bought this Old late 2013 16gb a1398 15inch MacBook Pro. Had Yosemite OS installed and only 32 battery cycles. Hardly used it seems. I know people more excited about the new 2020
A-Tech 16GB Kit (2x8GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
MacBook Pro 2013 15 inch 2.6GHz i7 16GB RAM Dual GPU - Techable
MacBook Pro Retina 15-inch Late 2013 A1398 16GB RAM 1TB SSD | eBay
Amazon.com: Apple MacBook Pro 15 inches Laptop Intel Quad Core i7 2.8GHz (MD831_BTO) Retina Display, 16GB Memory, 768GB Solid State Drive (Renewed) : Electronics
Apple MacBook Pro with Retina Display (13-inch, 2013) review: Not a Retina MacBook Air, but awfully close - CNET
Retina, round two: Apple's 15-inch 2013 Retina MacBook Pro reviewed | Ars Technica