Lots of great stuff in this thread. I've already found a few albums to download.
A few suggestions... maybe not as substantial as others in this thread, but I want to contribute something. (And for some reason it's not letting me line up the first tracks of each album for playing... no idea if that's how will work for everyone.)
iammanolis is a synthwave musician I found randomly through SoundCloud. I love lots of different types of synthwave, but iammanolis really infuses his stuff with a sense of nostalgia that I, as a layman, can't explain or define. I think the guy is a genius.
Digital Sex is the first vaporwave musician I ever heard, and this is still my favorite of his (?) albums. Like iammanolis (but in a very different way), Digital Sex has managed to capture not
the feeling but
a feeling of the late 80s/early 90s. I'm no less impressed it was done through sampling/plunderphonics.
Finally,
Blinker the Star is less of a proper "band" with a constant lineup than it is the continuing project of one extremely talented Canadian multi-instrumentalist, Jordon Zadorozny. Blinker the Star has had several brushes with fame over the years, but the band has never managed to break through into mainstream success for reasons I don't understand. It's on the pop end of the indie rock genre, and at times it can be pretty "bright," but don't let that scare you away.
The Bandcamp link doesn't have all of Blinker's albums, but it does have one of the better later albums:
The fact that so few people bring up Tim Haywood's name when they talk about greatest composers for horror games bothers me greatly. This man's work it criminally underrated.
Hell yeah. The Shadow Man soundtrack is probably the best part of a pretty great game. I would kill for a remake... if he did the music.