Tom Woods is an Austrian libertarian who is associated with the Von Mises Institute. His daily podcasts are excellent sources of information on all aspects of liberty. He and Austrian economist Bob Murphy also host a weekly podcast on critiquing Paul Krugman (by using one of his weekly NY Slimes articles).
In the above podcast he discusses a new book which deals with the history of the Right, Conservatism and its new challengers (which include the European New Right and Alt-Right). It is a very insightful discussion about the political spectrum.
Many Objectivists believe that left vs right are "false alternatives" and therefore invalid. This discussion explains why that is not so. The distinction in fact is very important and has a long history. This podcast is a good overview of the changing political landscape and what Objectivism will face in the coming years (although Rand and Objectivism aren't even mentioned).