Friendlyjordies - Australian news and politics (plus Warhammer 40k and some other random stuff, not sure if he’ll go back to politics now)

Adam Conover - usually talks about tech, politics, etc, has long-form videos talking to experts or shorter videos talking about topics

Punter’s Politics - Aussie politics

Joe Scott - talks about tech etc

Doctor Elliott - psychology and LGBT stuff in TV shows

Matt Baume - history of LGBT in cinema and Hollywood

Tale Foundry - literature tropes etc

Belief it or Not - atheist breaking down Christianity (for ex-Christians who are struggling and need help breaking away from the mental hold it has)

Jill Bearup - movie fight scenes from a trained actor combatant PoV

(Hope these were what you’re looking for, apologies for lack of links, I’m on mobile)