As in, channels where the presenter is laid back, calming, and the content is slower paced and chill. My go two examples are LGR for retro computer stuff, and Hainbach for experimental tape music.
Patrick Dickinson. Some old bloke from UK goes on Hikes and does wildcamps overnight.
Joe Pera: https://m.youtube.com/@JoePeraComedy In theory comedy, but the most wholesome relaxing kind you can imagine.
WAY OUT WEST with Sandra and Tim, Kind of a farm / homestead in Western Ireland. https://m.youtube.com/@WayOutWestx2
LockPickingLawyer
Steve Wallis (Camping With Steve)
Math Queen
Just background noise - morrowind challenges
Atomic shrimp - Walks, cooking, gardening, pretty varied content
In deep geek - In-depth fantasy lore
Patrician TV - ultra long format video essays on Elder scrolls games (also other games related stuff but his Elder scrolls essays are his best work imo)
Another for In Deep Geek. All the ones I’ve seen listed here I’ve seen before I swear people in the their video comments often mention their soothing voice deliveries.
+1 for atomic shrimp, was going to comment about him. He’s so positive and calming, I didn’t have much of an interest in the stuff he does until I started watching him, but his quite calm demeanor and positive energy makes it so easy to watch!
Another Atomic Shrimp fan. I came for the scambaiting, I stayed for Slow TV ❤️
Andrea Borman’s linux channel.
Click spring for watchmaking. It can take 6 months to do a single build and they’re insanely intricate.
Ishitani Furniture (no talking, plus an occasional pet): https://m.youtube.com/channel/UC7FkqjV8SU5I8FCHXQSQe9Q
He does great work!
Bill Hammack - TheEngineerGuy
All manner of engineering gadgets and phenomena explained clearly and calmly.
All licenced as CC BY.
Pask Makes - Australian wood- and metalworking guy who does the most elaborate and intricate things with absolute chill.
Dashner Design and Restoration - also woodworking, finds old and neglected mid century modern furniture at thrift stores and restores them beautifully.
Maybe tangential but FutureCanoe - meme-y cooking channel, super relatable and relaxing mostly because his voice sounds like existential dread.
Easily Brutalmoose, or his VODs at Moose2. Watching him play Nancy Drew games or old Windows 98 games is the perfect backdrop to working from home.
Another one is a James Channel. Upbeat, nice guy with insane technical experience does crazy stuff like make a SNES console run on an NES console. And it works. (Mostly)
Food Wishes with Chef John. Very fun, laid back, and dare I even say informative if you’re into cooking.
I revisit his channel every year at Thanksgiving when I need to prepare a turkey. His super simple roasted turkey video has served me well the last 5 or 6 years.
I always feel so reassured when you get to that one tricky step and Chef John says “But if you didn’t, that’s ok! It’s still gonna taste really, really good!”
City Planner Plays is quite literally the Bob Ross of city building games. He uses his actual professional knowledge of city planning to build really creative and compelling stuff, and he makes it seem easy enough that you want to try doing it yourself. He has commissioned a library of chill lofi beats that he plays in the background of all his videos, which adds to the vibe immensely. And on top of that, he seems like a sincerely pleasant guy, just having fun doing a thing he enjoys doing. It’s an absolute gem of a channel.
Most of what I would have suggested has already been posted by others, but I can say Kruggsmash’s Dwarf Fortress stories do this for me. The Waddlesquash/Kingdom of Autumn series he did (with the pumpkin mod) is particularly laid back, but even the action-heavy series are calming to watch/listen to.