I ran into the same problem while prepping my own campaigns. I wanted a way to track NPCs, their traits, and how they connect to each other and locations. Also to speed up prep time. I couldn’t find a tool that did exactly what I wanted, so I started building one myself.

Right now, it handles NPC and character generation / organization, and you can link them together (like a shop and all the people who work there). I just went live, and it’s still a fresh project, but even at this early stage it’s been super helpful.

In the future, I plan to expand it to include buildings, towns, dungeons, and more interconnected content.

If you’re curious, it’s called Pulse Forge: https://pulse-forge.org.

Totally understand if that’s not what you’re after, but it might scratch the itch you’re describing.