Some of my subs I haven't seen mentioned yet in no particular order:

FarmCraft101 (fixing and learning)

ProjectsInFlight (IC manufacturing at home stuff)

Lafayette Systems (rockets)

Air Command Rockets (air rockets)

Tod's Workshop (medieval weapons, history and testing)

Les' Lab (lasers!)

Erin's Audio Corner (speaker reviews)

Lubrication Explained (100% lubrication)

Process with Pat (process engineering)

Clough42 (fabrication etc)

Breaking Taps (machining and materials)

Stapleton42 (NASCAR history and more)

Projects With Everyday Dave (mostly solar power stuff)

Brandon Acker (classical guitar and more)

Building Integrity (building engineering and construction)

Nebula Photos (astrophoto)

Teaching Tech (3d printing)

Machine Thinking (machining history)

Stumpy Nubs (woodworking)

Andy Cooks (cooking)

Yesterdays Machinery (vintage machines and restoration)

BPS.space (rockets)

Jim's Automotive Machine Shop, Inc. (automotive machine shop stuff)

Ballistic High-Speed (Slowmoguys but weapons only)