G.SKILL F4-3600C16D-16GTZR 16 GB (8 GB x 2) Trident Z RGB Series DDR4 3600 MHz Dual Channel Memory Kit - Black with Full Length RGB LED Light bar at Amazon.com
OWC 16GB (2 x 8GB) PC21300 DDR4 2666MHz SO-DIMMs Memory Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S16P) at Amazon .com
Amazon.com: Corsair Vengeance RGB PRO 16GB (2x8GB) DDR4 3200MHz C16 LED Desktop Memory - Black : Everything Else
Corsair Vengeance RGB Pro 16GB (2 x 8GB) 288-Pin DRAM DDR4 3000 (PC4 24000) CMW16GX4M2D3000C16 at Amazon.com
CORSAIR Vengeance LPX 16GB (2x8GB) DDR4 3200 (PC4-25600) C16 for DDR4 Systems - White at Amazon.com
G.Skill Trident Z RGB Series 16GB (2 x 8GB) 288-Pin SDRAM (PC4-28800) DDR4 3600 CL17-18-18-38 1.35V Dual Channel Desktop Memory Model F4-3600C17D-16GTZR at Amazon.com