I was looking for resources on how to do DIY macbook repair recently when I came across this channel: https://www.youtube.com/user/rossmanngroup
The TLDR is that it's run by a guy who owns a laptop repair shop in NYC. He posts incredibly detailed videos of the techniques he uses to diagnose and fix the machines that come into his shop. (seriously, there are like... hundreds of hour-long videos walking through the entire process)
If you're interested in DIY electronics repair, I think this channel would be a great resource.
When I started looking into fixing my macbook (logic board problem), everything I initially found said some variation of "Apple solders all their components to their logic boards so if anything goes wrong all you can do is pay Apple 1k to replace the whole board." The concept that the logic board itself could be fixed never arose until I found this channel. Then lo and behold, I can watch ten videos of this guy demonstrating in extreme detail that no, actually it's possible, and here's how.
I mean, most of what he shows is way beyond my current level of ability to replicate, e.g. soldering new chips onto messed-up logic boards. But just watching that kind of stuff has expanded my sense of what's possible in a DIY context. It also has some kind of (positive) mental anchoring effect, where repairs that previously seemed intimidating now seem trivial because hey, I just watched this dude rebuild a motherboard, I'm pretty sure I can replace a screen or whatever...
The channel owner is also a big proponent of the right to repair movement, which I see as philosophically aligned with ERE.
**The caveats to this whole recommendation are that 1) You'll need to do some filtering if you're just looking for instructional content (he has lots of videos that are just rants about Apple and the NYC government) and 2) Most of the content is probably too advanced to be useful to the average DIY-er. I imagine that the population of people who have the tools / skills required to replicate the repairs that he does is pretty small, even among the ERE crowd.