For Postgres specifically, I've been enjoying Bruce Momjian's blog lately [1]. He posts some tidbit every day or two, and not trivial things you'd already know.

For Postgres specifically, I've been enjoying Bruce Momjian's blog lately [1]. He posts some tidbit every day or two, and not trivial things you'd already know. depesz.com is great too and really helps you stay on top of what's new in Postgres. And the pg consulting companies post quite a lot of great articles that aren't really about selling you something. (Obviously they would be happy for you to hire them, but that's pretty indirect.) [1] https://momjian.us/main/blogs/pgblog/2020.html https://momjian.us/main/blogs/pgblog/2020.html