Amazon.com: OWC 2.0TB Aura Pro X2 SSD Compatible with MacBook Air (Mid 2013-2017), and MacBook Pro (Retina, Late 2013 - Mid 2015), and Mac Mini (Late 2014) : Electronics
Amazon.com: INDMEM PCIe NVMe Gen3x4 SSD 1TB 3D TLC NAND Flash Hard Drive SSD Replacement for MacBook Air 2013-2017, MacBook Pro Retina 2013-2015, iMac 2013-2017, Mac Pro 2013, Mac Mini 2014 (1TB) : Electronics
How to Upgrade the SSD on a MacBook Pro Retina Early/Mid/Late 2013/2014/2015 - Replacement Tutorial - YouTube
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider
Amazon.com: Odyson - 1TB SSD Replacement for Apple MacBook Pro 13" A1502, 15" A1398, Replacement for Apple Mac Pro A1481, 21.5" A1418, 27" A1419 (Late 2013-Late 2014) : Electronics
Amazon.com: OWC 2.0TB Aura Pro X2 SSD Compatible with MacBook Air (Mid 2013-2017), and MacBook Pro (Retina, Late 2013 - Mid 2015), and Mac Mini (Late 2014) : Electronics