Amazon.com: Crucial RAM 32GB DDR4 2666 MHz CL19 Memory for Mac CT32G4S266M : Everything Else
32GB Kit 2x16GB DDR4-3200 PC4-25600 ECC 2Rx8 Unbuffered Server Memory by NEMIX RAM at Amazon.com
G.Skill Trident Z5 RGB Series (Intel XMP) 32GB (2 x 16GB) 288-Pin SDRAM DDR5 6000 CL36-36-36-96 1.35V Dual Channel Desktop Memory F5-6000J3636F16GA2-TZ5RK (Matte Black) at Amazon.com
Samsung 32GB DDR4 2666MHz RAM Memory Module for Laptop Computers (260 Pin SODIMM, 1.2V) M471A4G43MB1 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
Crucial RAM 32GB Kit (2x16GB) DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT2K16G4SFRA32A at Amazon.com
Grab 32GB of solid Corsair Vengeance RGB RS DDR4 RAM for £79 from Amazon | Eurogamer.net