There isn't a ton of great public resources out there. For the most part, anyone who's writing smart analysis in the public space gets hired away to a club. It's exactly what happened in other sports.
But, I would read "The Numbers Game: Why Everything You Know About Soccer Is Wrong" and read the backlogs of the StatsBomb blog. That will get you up to speed pretty quickly.
But, I would read "The Numbers Game: Why Everything You Know About Soccer Is Wrong" and read the backlogs of the StatsBomb blog. That will get you up to speed pretty quickly.