Clickspring - Builds things in brass. Super detail and high production quality. Currently working on making an authentic replica of The Antikythera Mechanism from raw metal stock.
https://www.youtube.com/channel/UCworsKCR-Sx6R6-BnIjS2MA
Others are either gaming related that I don't watch much anymore (use twitch for that) or things that have been mentioned several times already.