I feel like I've been gaslit into running FOSS but every success only brings me closer to fighting god
I use names from FFXIV.
For my work-related VMs, raid bosses. It makes it easy to spot my VMs because nobody sane would name them stuff like Erichthonios or Hippokampos. Unfortunately I had to draw the line at 724P-Operated Superior Flight Unit A-lpha.
For my home server VMs/CTs, I use the names of the gods - Byregot, Rhalgr, Azeyma, etc. and Eulogia for Proxmox itself.