I have seen a few times people suggest used SFF pcs like a dell optiflex as a replacement for a raspberry pi. Is there anything to look for specifically or ones to get/avoid? I have searched this sub and have not found anything that was recently suggested. Right now just looking for something to run home assistant and frigate. Down the road may add more.
Anything with 8th gen and newer Intel CPUs are good as they have more cores per CPU.
4th gens are ok but limited to 32GB of DDR3 RAM
6th gens are better than 4th gen as they are on DDR4 and will support more RAM.