I’m boring. I’ll name physical hardware after the model name or manufacturer or something like that. My main host is just named “DellPVE” and then I’ll name VM/containers after the service it’s running, “radarr”, “plex”, “pihole” etc.

Proxmox helper scripts! These help a lot.

https://community-scripts.org/scripts

There’s a remastered version on steam that plays pretty well.