I absolutely love industry-specific news sites / communities. Hacker News itself is one (duh), but to me it's most fascinating seeing "non-tech" industries have some sort of digital (or sometimes even a regular print paper, if it's niche enough) presence. Obviously it's not surprising when you think about it that an industry would have its ways to spread news -- but these industries are so out of my orbit that it's always novel to stumble upon.

e.g. Freight Trucking is one that has a particularly robust network of competing news sites https://www.freightwaves.com/news/category/trucking, https://www.ttnews.com/, https://www.thetrucker.com/

To anyone else who finds this interesting, and I'm not exaggerating, -- if there's any cool industry hubs you find, please send them my way.