Is his stuff copyright restricted on youtube? Looked it up and all I found was him talking. Not actual tracks. Don't know any of his discog so was not sure what to find or how. He seems to be a big Sabbath fan. Opeth are interesting but never really went into their brand.
Yeah, Opeth is basically his brand. He has a lot of videos on social media discussion some of the more obscure proggy stuff that he likes. A small list is Porcupine Tree, Camel, Mirage, Cornus, DP, Yes, Jethro Tull (who is featured on their upcoming album), ABBA. Along with a lot of Metal bands that have inspired his work. The guy is practically a music encyclopedia.