Simon and Rob are fantastic are doing both engaging and regular emergency medicine related paper reviews and deep dive style topic reviews. Particular good for U.K ED and PHEM enthusiasts.
Australian paeds bods have put out a lot of recordings from their wonderful conferences, good to get up to date with cutting edge peadaitric emergency care. Website is a treasure trove too.
Influential American FOAM bod, sometimes a bit high level a but some of the topic breakdowns (e.g. acid-base of Heart failure) have the change the way I think. Particularly good of Intensive care/EM crossover stuff.