Steve Keen is an economist who follows Post-Keynesianism in the tradition of Minsky: https://en.wikipedia.org/wiki/Hyman_Minsky
I agree with many of the criticisms of mainstream economics at the opening of this lecture series: https://youtube.com/playlist?list=PL0A21A329D01D0CFE
I'm concerned that other economists have accused him of making basic errors: https://en.wikipedia.org/wiki/Steve_Keen#Criticism
I wonder if I will be able to tell if he makes errors and whether the series is still worth it. See the comments on the post that criticized him: https://web.archive.org/web/20190920154 ... economics/
Edit: A recent video by him on the present moment: https://youtu.be/OU-nDL7lDt8