Based on Drew Builds Stuff:

• Stuff Made Here, applying high technology and robotics to low-stakes challenges.
• The Thought Emporium (Also on Nebula). One day, they're artificially aging whiskey with ultrasound, the next, the host is editing his own genes to remove lactose intolerance.

Based on the intersection of building and the great outdoors:

• Quiet Nerd, who's been building a lot of camping equipment lately.

Some shots in the dark, based on exploration and documenting the unseen:

• Exploring the Unbeaten Path, urban exploration with some unique locations.
• Crime Pays But Botany Doesn't, identifying plants.

Based on Baumgartner Restoration:

• Hand Tool Rescue, a channel where they lovingly restore antique tools and machines.