NurdRage - a professional chemist doing backyard chemistry, in ways that are accessible for the amateur. Covers topics from aqua regia dissolving gold vs. platinum to simple stuff like hot ice.
NileRed - another chemistry channel. More focused on silly projects, like making grape soda from gloves. (Yes.)
Cody’s Lab - backyard chemistry and mining and self-sustainability and farming and beekeeping… hard to explain, he got a bit of everything.
Francis John - rather entertaining LPer. Best known for silly Oxygen Not Included builds.
EthosLab - one of the oldest Minecraft let’s player. Chill, non-controversial, funny, overall enjoyable to watch.
Tasting History with Max Miller - recreates old recipes in modern times. By “old” I mean anything between Sumerian times and 1900 CE.
Primitive Technology - the guy who started this “you start with nothing and try to build civilisation out of it” trend. Legit, unlike plenty of his copycats.
Focusing on Youtube: