Install SSD in Late 2012 IMac (thin Edges) : 6 Steps - Instructables
I got a FREE 2013 iMac 21.5 with internal upgrades including Samsung evo ssd and 16gigs of ram. Then used open legacy patcher to install Mac OS Venture 13.5 beta. : r/osx
How to Installing MacOS on New Blank SSD iamkantiray - YouTube
Can't install Mac OS after SSD replacement : r/MacOS