I haven't intentionally watched a ton of the ancient aliens type stuff, but have looked a ton at the ancient structures in various areas.   I've watched many but haven't severely stuck to any particular theory.  There's a lot of cruft mixed in especially when it comes from Zecharia Sitchin and a Von Daniken that play a bit loose with translations and ignore some other important data that kind of conflicts.

Not extremely familiar with Randall Carlson, I'll check it out to see how he is alone without Hancock who is a bit of attention whore who sensationalizes things a bit too much (like other  authors mentioned above), they do have some good info, but they bury it by trying to tie together a single grand theory  instead of just presenting data and suggesting what might fit and what doesn't fit.  Found some decent info on the South American stuff from Brian Foerster and a youtube channel "Uncharted X" https://www.youtube.com/@UnchartedX/videos Which covers all sorts of stuff, including interviews with most all of the names mentioned above and extra info and visits to all the sites in first person getting measurements and other neat stuff.  Several are "former archeologists" who spoke against The History and were removed from all the archaeology stuff so they can add info from the inside view and the independent research and compilations of various data.  They sort of have to sensationalize their books since they're sort of shadow banned on search engines for not toeing the line, doesn't mean everything they say is incorrect, just some of it is "disputed" and search engines and youtube do their best to guide you to official party line info instead.

The problem is a lot of the data they find is only available from "Approved Sources" meaning archeologists and they sort of neglect mentioning things that don't fit with their worldview and timeline they rarely budge on, so there's something between that we need to put together ourselves I guess.

Is there a link to him on Ryan or has it not happened yet?

I enjoyed it. I'd heard of toroidal plasma tech before but never in conjunction with an internal combustion engine so that was interesting. I started listening to some of Randall Carlson's Cosmographia podcasts today and those are really interesting as well. He's got a series about the Holy Grail that explains how he thinks a lot of the myths of old and the Grail itself are descriptions of cosmological events that I'm working through now.