I just switched to an 8GB raspberry Pi 4 for a ZFS storage solution, so maybe that is an option if you only need a couple VMs? Are you doing transcoding or oth

I just switched to an 8GB raspberry Pi 4 for a ZFS storage solution, so maybe that is an option if you only need a couple VMs? Are you doing transcoding or other CPU-heavy tasks? If not, Atom chipsets in laptops will be the lowest power consumption that has significantly more RAM than the Pi 4. If you have CPU-heavy load then Ryzen Zen3 generation are the current winners at performance/Watt.