who do you recommend I follow?

What I like may not be what you like at all. I mean, depends on your interests.

And I don’t “follow” any of these, watch every thing when it comes out. These are just some YouTubers for whom I’ve had a high proportion of their material wind up being something that I feel is worth watching.

Montemayor

Does military history, mostly naval. Does not put out a lot of videos, but from the ones that I do follow, has really done his research through the written material out there before putting the material out, does a good job of highlighting what’s important.

To a lesser degree, Drachinifel and The Operations Room. They’re also military history, but I don’t feel like they do as much research or highlight the important bits as well. Drachinifel focuses more on surface gun-era naval warfare, and The Operations Room tends to deal with newer stuff.

The Slow Mo Guys. Not exactly deep stuff, but they do one thing: high-quality interesting slow-motion footage. Pretty popular, so you may have heard of them before. I think it might be interesting to have some sort of analogous channel that does videos of microscope stuff, pans around something with a nice microscope.

SmarterEveryDay does, I think, a good job of explaining interesting things in our daily world from an engineering/technical standpoint; guy does a good job of researching his material. You’ll probably walk away from this knowing this that you didn’t.

CGPGrey does stick-figure illustrated things that also highlight interesting stuff, often relating to legal or political or historical stuff.

Perun does defense economics, and has had interesting and informed material on the Russo-Ukrainian War. Michael Kofman, an analyst who focuses on the Russian military, doesn’t have a YouTube channel, but many YouTube channels do interview him, and while he’s kind of dry, I also think that his material on Ukraine is pretty worthwhile – he’s consistently avoided alarmist stuff or cheerleading over the course of the war. Can find material with him via searching for his name.

One of the problems I have with YouTube is a side effect of the fact that it pays content creators. I don’t have any real problem with that per se – I mean, sure, you wanna do work and get paid, that’s fine. The problem is that there’s no real “YouTube of articles”. The result is that a lot of content creators out there are putting stuff in video form that really doesn’t need to be in video form, just because they want some reasonable way to monetize it. The above videos are from people who generally take advantage of the video format (well, Michael Kofman could really do just fine on a podcast and often does, but aside from that). I’ve seen too many YouTube videos – including those being submitted on the Threadiverse – that would really be better as text and possibly image articles.

EDIT: Oh, right. Someone else mentioned Primitive Technology, which I would definitely second. Has a guy go out in the woods with just his shorts and basically manufacture a lot of basic technology from the ground up. Does have subtitles, but no narration or speech. The practical use of what he does is probably limited, but I found it fascinating. I remember that this was very popular for a while on Reddit.