Tested - Adam Savage's tinkering and Q&A channel;
Primitive Skills - the only person in the genre who settled a plot of land and developed it for years;
Crime Pays but Botany Doesn't - travels the whole world showing wild plants, although he does only do arid regions for some reason - probably to make people see they're not wastelands;
Lock Picking Lawyer - bit self-explanatory;
mymechanics - legend in mechanical restorations;
Rebecca Watson - debunking popular and science myths;
Townsend's - demonstrations of 18th century skills;
Innuendo Studios - pop culture critique, painstakingly researched;
Folding Ideas - pop culture critique;
Chocolate Cacao - patisserie;
Stumpy Nubs - carpentry;
Paul Sellers - carpentry;
Practical Engineering - self-explanatory;
Cody's Lab - home tinker/chemist;
NileRed - best of the home chemists on youtube;
Bernadette Banner - fashion design;
Pasta Grannies - traditional pasta making;
Gaby Melian - chef;
Claire Saffitz - pastry chef;
DIY Japanese Joinery - self-explanatory;
Cocktail Chemistry - self-explanatory;
Vihart - playing with math;
Ready to Die Fighting - resiliency;
Zoe Bee - pop culture critique
808CJK - comparative language learning for Chinese, Korean, and Japanese