Do you care to share any of the model numbers you have found that you can load custom software on? I was at Goodwill once and they had an essentially endless s

Do you care to share any of the model numbers you have found that you can load custom software on? I was at Goodwill once and they had an essentially endless supply of some x86 thin-client for $9.95 each. The problem was I couldn't find any info about how to run my own OS on it.