Ask HN: Online Communities Like HN?

Related "Ask HN: What are your other favorite communities other than Hacker News?" https://news.ycombinator.com/item?id=20023209

For personal finance there's https://www.reddit.com/r/personalfinance/ They have a huge wiki and in the right-hand pane there's links to similar communities and those specific to other countries.

For the topic of personal finance, there is bogleheads.org and the Mr. Money Mustache Forum. (https://www.bogleheads.org/ and https://forum.mrmoneymustache.com/)

I haven't personally used it, but lobste.rs is a semi-popular computing-focused community similar to HN: https://lobste.rs/