To provide my own example - M. Bjoernstroem's channel is awesome: https://www.youtube.com/@M.BJOERNSTROEM/videos
https://youtube.com/@cuttingedgeengineering
https://youtube.com/@snowballengineering
https://youtube.com/@noengineerhere (but probably too much comedy for your taste)
https://youtube.com/@matthiaswandel
https://youtube.com/@agingwheels
Much of the channel is about dragging decrepit artifacts of industry out of scrapyards or the reclaiming jaws of Nature and quite effectively repurposing or reusing the sound bits, which is something I personally find to be creative and satisfying.
He's at Bonneville now, hope he's doing well and setting records.
No snark, minimal editing and narration.
https://www.youtube.com/@InheritanceMachining
Here are a few more on my list:
https://www.youtube.com/@AppliedScience
https://www.youtube.com/@garywillett4146
https://www.youtube.com/@Clickspring
https://www.youtube.com/@christopherhelmke
https://www.youtube.com/@JesperMakes
https://www.youtube.com/@Photonicinduction
https://www.youtube.com/@Jeremy_Fielding
Some of these are a little different in style and content but I think that they'll scratch the same kind of itch.
Awhile back I suggested to a friend who was dealing with a tragic loss to watch from the first video as an excellent example of what heathy grieving looks like. An absolutely beautiful channel.
https://www.youtube.com/@OddsandEndsMachining/videos
Including sand casting a 350cc V4 two stroke engine block (for a motorcycle). He gets a foundry to do the actual metal pours, but this guy: https://www.youtube.com/@OzBSABantams/videos sand casts cylinder heads and triple clamps on his driveway.
Restorations, whacky projects, all laid back and down to earth.