For audio advice, which channels, if any, do you think are worthwhile on YouTube?

I've seen several posts by newbies on Agon looking for advice. Great to see a lot of good advice being offered to them, along with helpful prompts asking them for details they might not have considered.

Still, a lot of people looking for advice don't go to audio fora; they go to YouTube. I've now spent 8 months reading fora and watching YouTube channels pretty closely. My sense is that even many of the video commenters with thousands of subscribers on YouTube have significant gaps to their knowledge and experience. Some even accept sponsorship by companies. Such folks are not amateurs; but they're at best semi-professional. Still, their advice moves a lot of product, gets YouTube money, and the machine churns on.

I've learned a lot from YouTubers, but when I compare the average base of knowledge there to what I find in many folks here, it seems somewhat erratic and often thin. (I'm judging this from a semi-newbie status myself, so if I'm wrong please tell me.)

QUESTION: If you were recommending a YouTube or a video site to someone looking to educate themselves about the basics of audio gear and also various commercial products, where would you send someone?