I’m basically copying most of my subscription list here:

• Chef James Makinson - a chef who has done more calm reaction videos recently but has recipes on his channel as well
• Dark5 - one of those channels that produces videos on 5 things about many different stuff (mostly on dark subjects)
• Brew - scaring people from everyday stuff, one video at a time
• Mentour Pilot - commercial pilot giving insights to accidents and incidents as well as other aviation-related content
• 74 Gear - another commercial pilot but has more lighthearted aviation content
• TheFlightChannel - recreations of flight accidents and incidents with text explanations
• PBS Eons - interesting channel on the evolution of life on Earth through the eons
• HONEST GUIDE - channel that offers honest advice on Prague, Czech Republic
• Mustard - high-quality documentary videos on some technologies, they don’t post regularly but the wait is worth the content
• Langfocus - a language enthusiast talking about languages and simplifying them as an intro
• Jelle’s Marble Runs - marble racing, the world’s sport

I think that should be good enough…