God.
So many. It's the biggest single use I make of Youtube these days.
Already mentioned:
Gavin Webber. God gave him a gift. He makes cheese. He makes cheese
very well.
emmymadeinjapan. Her content is kinda all over the map - some kitchen gadget reviews, some fast food taste tests, some bizarre recipes, some food challenges, you name it. But she's very watchable.
The Wolfe Pit. Kinda... "the cooking channel for poor rednecks", or something, but he does good work, and props on him for doing it while being nearly a quadriplegic.
Binging with Babish. He does a few series on the same channel, but the two main ones are Binging and Basics - Binging is fancy recipes or weird ones, often things mentioned in movies or TV shows, while basics is more straight-up cooking fundamentals and easy recipes. I don't have any problem with his personality or humor like some people here seem to, his occasional shilling does annoy me a little, but meh, I know Youtube has gone to shit for trying to make a living in the last few years.
A few others...
Simply Mama Cooks. A mixed Mexican-Korean American family, she cooks a kind of eclectic mix of stuff from all three cultures, but her videos are easy to follow, watchable, and frequently turn out very well.
BBQ Pit Boys. Their food will kill you, but these are My People.
Townsends. This whole channel is actually a PR thing for a store that sells re-enactment supplies, but fuck it. It's great. Tons of old, colonial era recipes, and they go the whole way for authenticity. He does do some other stuff, like visiting old historical sites, talking about old clothing, building old buildings, things like that. A fun channel all around, I find.
Scott Rea. This guy does meat. Butchering it, cooking it, curing it, turning it into sausage, you name it. Meat.
Magic Ingredients. Channel is in Chinese, but there are good English subtitles. Mostly chinese recipes, well presented, and tasty.
And two special mentions, because both are "living dead" channels... Both of them are still around and occasionally put out content, but aren't what they once were after the death of a host or mascot.
Cooking with Dog. Originally a Japanese cooking channel, the "gimmick" was the "host" was a dog called Francis who always sat on the counter while the real host was cooking. Sadly Francis died a few years ago. The channel still continues, but it hasn't been as prolific since.
Grandpa Kitchen. Old Indian guy who cooked huge batches of food over a fire in the middle of a field and gave it to a local orphanage or school or something. He didn't speak English really, I'm pretty sure the entire thing was conceived, set up, and ran by his son or grandson or whoever it was with him in the videos, but he was charming and fun to watch. Sadly he died a couple months ago. Channel is still there and putting out new content, but I haven't bothered to watch it since he died.