Selfhosted

I use Roman authors, with the machine/VM's purpose (often vaguely) linked to what the author was known for. For example, my NAS is called Tacitus (a historian), while my game server is called Plautus (a playwright). A couple services predate my schema (like my Pihole and OPNSense box) and are named descriptively.

Ship names from the expanse.

My PC is the Rocinante My home server was previously the Behemoth, put it in a smaller case so now it’s Medina.

I've not played for years but I still have a YuGiOh cards naming scheme.

Greek gods.

Zeus, ares, hera, dionysus, etc etc

Royal-Cat-(Computer type)

for example, Royal-Cat-PC or Royal-Cat-iPhone

I do robots from video games, movies, TV shows, etc.

2nd ww navy vessels (inspired by kancolle)

personal machines - destroyers
servers - battleships

I tried thematic names but I kept adding devices until it all fell apart.

Now I'm using generic nouns like: plaza, highway, bazaar, stadium, minefield, church...

i use all the naming schemes. douglas adams, astronomy, greek letters, star trek ...

have to come up with a new concept every other machine.

*bble. Rabble Ribble Pebble Pibble Tribble Rebble Jibble Jabble Etc...

I use harry potter characters

I do models for laptops and case names for my built desktop. So Dell-3590 or my desktop is NR400.

I know who has what so its easy to manage if i want to cut off network access or transfer files.

My Synology is named Atlas because it’s my main file storage box (and has a most of my services running on it).

My VPS is called Aurora after the atmospheric phenomenon because cloud server.

And my little laptop I installed a server Linux distro on is called Challenger because I find it challenging to work with Fedora Server sometimes

I used names of fictional robots, androids and self-aware computers (though I avoided HAL for obvious reasons) for a long time. These days my wife and I usually go with an indirect reference to the function or hardware - Ex. a device named Anathema, or a Raspberry Pi server named Marie (as in Marie Callendar, a former local pie/restaurant chain). I had an expendable frankenputer for tinkering that I called RedShirt.

Currently trying to come up with a name other than Chris for the PineTab 2.

Edit to add: Places I've worked have used Roman emperors, drink brands, Simpsons characters, and of course basics like "IIS1" "MAIL4" "QA-3" and so on. Some would add numbers to the names sequentially, others would use the last octet of the IP address.

Solar system. My gaming machine is called Titan, my Pihole is called Asteriods, my Lemmy machine Callisto and on it goes. 😀

For work - No need to divulge. It's work/corporate standards likely similar to some folks that have listed here give or take some characters.

For home, Venture Brothers characters.

I use futhark runes for my machines and set an ASCII representation of the rune symbol as the /etc/{issue,motd}

I started with Die Hard characters (Hansgruber, NakatomiVault for Nas, John McClane, etc) but lately have been doing Back to the Future. I've got a Marty McFly, DocBrown (old server), and BiffTannen.

Used to use characters from Madagascar, swapping over to dankpods references. Dingus, Frank, Sexy Speaker, Old Mate Senny.

Usually just names/lyrics of my favorite songs
iPhone: ByeByeBaby
AirPods: You're on your own, kid
Laptop: InnerMonologue
Except just for fun, I named my HomePod Cortana

Different Japanese food from this list, cause they are delicious.

After starting with X-Men characters and quickly running out I moved to Star Wars planets as there are a lot more of them

I've changed my naming scheme so many times that its practically a set-of-sets at this point. But, "board games" is a good long one if you have a lot of machines.

Also some kind of Machinery. "GameMachine" for my Xbox "BigMachine" for my PC "MiniMachine" for my Phone "MicroMachine" for my Pi

Except my small 2-in-1 Laptop. That's "decepticon". Because it's an Asus Transformer Book.

looks like I'm one of the many that use Star Trek ships for my naming scheme:

Enterprise - My gaming PC
Kumari (Gen. Shran's ship) - my debian laptop
Defiant - another debian laptop (a two-in-one ultraportable)

Not just for devices but also my hard drives, I use the names of stars. For example Rigel or Betelgeuse

My devices are all named after things from the Star Wars universe, in particular:

• Stationary computers are named after planets (my "main" PC is Coruscant, the old "main" that was Coruscant before is now Corellia, etc.)
• Laptops are named after mega-stations (DeathStarI, DeathStarII, Starkiller, etc.)
• Tablets and comparable sized devices are named after giant starships like the Super Star Destroyers (Executor, Lusankya, KnightHammer, etc.)
• Mobile phones are named after regular sized starships (like Tydirium, TantiveIV, SlaveI, EbonHawk, etc.)

Mine are named after mythical Asian creatures.

Phoenix, Kirin, Yuki-onna, Dragon, Kodama, etc etc

For personal machines, I use rivers.

At work we use superheroes.

For hobby projects, cute 4 letter words (it's a challenge), for example bubu and alia.

All of my personal machines are Autobots.

At work we use space probes (Voyager, Pioneer, New Horizons, etc). We're a small satellite communications company.

Mine machines are all named after Final Fantasy Summons/Espers/Eidolons/Aeons/Primals.

My main proxmox node is Bahamut. I try to pick a suitable summon that matches the host but that doesn't always work.

We did reindeer; Dasher, Dancer, Vixen, etc.

Sounds like you could start using the names of moons. But a pantheon does sound like a good system too, should also include the titans.

Futurama characters: Farnsworth, Calculon, Nibbler, Wernstrom, Clamps

I name my machines after my cats.