Below are a quick of my favorite reads:
abnormalreturns.com - great for overall finance
Stratechery - Big tech and more
Marginal Revolution blog - great for all things econ
Money Stuff - Matt Levine
Soundbite / Hot Pod - audio and podcast gossip from Bloomber
Stephen Clapham, Behind the Balance Sheet - substack on advanced accounting / investing
I'm sure I'm missing tons - but wanted to share what I had off the top of my head.