I’ve been slicing and dicing (and adding commentary to) a lot of old archival footage of classic catch wrestling matches, while mining them for the legitimate bits exhibited by the early pioneers.
To elaborate: early Professional Wrestling events were still very much rooted in realistic combative techniques performed by athletes who were used to grappling adversarially in unscripted bouts. Some of these guys were absolute legends, including Lou Thesz (one of the athletes included here).