Marxist Podcasts:

• Antifada -- The most Chapo-y of the podcasts I listen to but actually communist and much more rigorous. The host and Matt Christman have (or had I guess) a series on it called History is a Weapon which is quite good too.
• The Regrettable Century -- Religion and History focused podcast, especially Medieval and 19th century German history but explicitly through a Marxist lens.
• Varn Vlog -- probably the most prolific Marxist podcaster right now, he interviews everyone (of the socialist left) so even if you don't agree with him all the time his podcast a fantastic resource. His youtube channel has more than his podcast feed and is updated faster for whatever reason.

Non-marxist Podcasts:

• Bad Gays -- A left adjacent podcast about horrible queer people (mostly but not exclusively 'gay' men) throughout history. Their first episode is about Ernst Röhm, the main 'victim' of the Night of the Long Knives, the leader of the Brownshirts and personal friend of Hitler.
• Fight Like An Animal -- A behavioral biology/political theory podcast, the host is more of an Anarchist but definitely revolutionary focused.
• People's History of Ideas -- Ostensibly about the history of different communist revolutions but is primarily about the Chinese Revolution so far. It's like Revolutions but better. I put it under non-marxist cus the host is not explicit about being one but probably is.