I honestly can’t think of any podcasts I listen to that started before 2020. I just want to listen to a soothing voice talk about trains or geopolitical conflicts that is new you dig? I’m looking for a podcast who’s halcyon days is now, I’m tired of listening to zombie podcasts that have no soul that just coast by on the patreon moneys.
Guerilla History - A weekly podcast about revolutionary history hosted by Henry Hakamaki, Adnan Husain, and Breht O'Shea.
Corner Späti - Weekly politics podcast (primarily European). Takes a kinda silly tone like the dirtbag podcasts, but I don't think it is related.
This Machine Kills - Critical tech / Marxist-Luddist podcast covering subjects like AI, survaillence, insuretech, the gig economy, the geopolitics of the chip industry, among other subjects.
I think, in order to find a non-dirtbag affiliated podcast, you will need to find a podcast produced by people who are not on Twitter, because everybody on left-twitter tends to either fall into that milieu, or be a radlib. Even if they don't know eachother, they are all responding to the same Twitter "main character of the day," dunking on the same ratioed headlines, retweeting the same memes, etc.