I've been drawing spaceships all my life. I can't remember a time when I wasn't scribbling something with a ship or maybe even a robot in it. After a few decades, some of them started to look kinda interesting. After another couple of decades I started drawing them in 3D with CAD. After another half-decade I tried adding some frills like lighting and shadows to spruce things up a bit more.
I've been posting these ships at a website I had joined years before:
Scifi-Meshes . If you haven't visited there, you should. There's some truly awesome work posted there ‐ way beyond what I can do. Not to say I'm bad at what I do, but what I do is a bit different than what most of the other members do.
The majority of the other members reproduce (sometimes painstakingly*) or adapt ships from existing SF universes (Star Trek, Star Wars, Star Trek, Babylon 5, Star Trek, 2001 and Star Trek.) with beautiful results. The vast majority of my work is original, based on my own ideas and preferences.
They have a Discord presense as well.
Since the ships look very different from each other, and obviously are of very different technologies from each other (obvious to me anyway) I made up a framework of a Federation-type government that keeps a census of alien derelict spacecraft discovered while mostly-bored people nose around various corners of the galaxy. That's where the catalog entries or "tags" came from.
(* I mean
in depth, with a focus and dedication I'm both terribly impressed with and completely uninterested in emulating.)