Amazon.com: Kingston FURY Impact 16GB 3200MT/s DDR4 CL20 Laptop Memory Single Module | Intel XMP | AMD Ryzen | Plug n Play | Low Power Consumption | KF432S20IB/16 : Everything Else
G.Skill Trident Z RGB Series 16GB (2 x 8GB) 288-Pin SDRAM (PC4-25600) DDR4 3200 CL16-18-18-38 1.35V Dual Channel Desktop Memory Model F4-3200C16D-16GTZR at Amazon.com
OWC 32GB (2 x 16GB) PC21300 DDR4 2666MHz SO-DIMMs Memory, Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs, (OWC2666DDR4S32P) at Amazon.com