Mr. Maker, I ordered this one from ebay back in March: https://www.ebay.com/itm/323724320252
The part number was LM215UH1 (SD)(B1) and worked perfectly. Really easy repair. Good luck!
What is the part number for a replacement screen for an iMac Intel 21.5” Retina 4K Display (Apple Model No. A1418, EMC 3069)? Does ifixit carry them?