I also find one store in aliexpress sells them, the link is https://www.aliexpress.com/item/eMMC-eMCP-test-socket-3-in1-socket-with-USB-Interface-for-BGA153-BGA169-BGA162-BGA186-BGA221/32649479794.html. PM me if you want to know more about these sockets, I also can provide their website to you. ;) ;...