Few more which I had forgotten, ParallaxNick is a hidden gem:

https://www.youtube.com/@parallaxnick637 | Science, history, astronomy, gorgeous poetic narration, love how he puts science in historical context

https://www.youtube.com/@WardCarroll | Veteran F-14 Tomcat radar intercept officer covers air power, episodes with Justin Bronk are the best open intel on Russia and Ukraine available

https://www.youtube.com/@MakingShorts | Joel Haver's quirky comedy shorts, sometimes sublime melancholic pieces