Kingston Fury Impact 32 GB (2 x 16 GB) 2666MHz DDR4 CL15 Laptop Memory Kit of 2 KF426S15IB1K2/32 at Amazon.com
G.Skill Trident Z RGB Series 32GB (2 x 16GB) 288-Pin SDRAM (PC4-25600) DDR4 3200 CL16-18-18-38 1.35V Dual Channel Desktop Memory Model F4-3200C16D-32GTZR at Amazon.com
CORSAIR Vengeance LPX 32GB (1 x 32GB) DDR4 2666 (PC4-21300) C16 Desktop Memory - Black at Amazon.com
CORSAIR Vengeance RGB Pro 32GB (2 x 16GB) DDR4 RAM - Newegg.com
32GB Memory Upgrade for 2019-2020 iMac and 2018 Mac mini