Level1techs tends to go more into the enterprise server side but Wendell always has some gadget to show off.
I’d also advise to keep an out on the maker space, like raspberryPi or other SBCs, there are inexpensive machines and plenty of guides for various applications which don’t require much Linux knowledge if you’re already doing server stuff.
I have similar thoughts. I use bandcamp for smaller artists but I would recommend nicotine+ on Linux