techmoan is great for retrotech. also in the same vein, but more focused on retro compute is 8-Bit Guy, and then for just retrotech of all sorts, Technology Connections has to be one of the most well-researched and entertainingly presented channels on YouTube.

Techmoan is great for the visuals, but his information is sometimes wildly inaccurate. Still, worth checking out every few months.

Since we're on the subject, Adrian's Digital Basement is my favorite.

Adding TechTangents too: https://youtube.com/c/AkBKukU

And CuriousMarc (he’s a legend): https://youtube.com/c/CuriousMarc

And Cathode Ray Dude: https://youtube.com/c/CathodeRayDude