I'm currently listening to this radio series by David Cayley on Simone Weil (nearly 5 hours total length).

This American Life did a good bit on a free speech kerfuffle at the University of Nebraska where a sincere and sympathetic teenager tabling for the right-wing Turning Point USA was confronted and berated by a staff member/grad student for being a 'neofascist Becky'. But the program does not merely paint TPUSA in a sympathetic light, it also points out some ways in which the rights of white students are disproportionately protected.

The program also strongly implies that the grad student in question (who was removed from her teaching position after the incident) is affiliated with the activist group (or 'brand' for lack of a better term) called Betsy Riot. It looks like a liberal antifascist and anti-gun group which describes its members as "feminist patriots" and "punk patriots" (so maybe emphasis on the liberal). https://betsyriot.com/

Sheldon Richman got an introduction to the libertarian left and free-market anti-capitalism published on The American Conservative back in 2011.

This essay by Spencer Sunshine is over ten years old now, but still very informative on national-anarchism and other attempts at fascist use of leftist ideas.

"The danger National-Anarchists represent is not in their marginal political strength, but in their potential to show an innovative way that fascist groups can rebrand themselves and reset their project on a new footing."