Here at VIMANAFUSION
you will find the classics beside the recent works of brilliant Jazz, Jazz Rock, Jazz Funk, Fusion, Japanese Fusion, Zeuhl and a broad variety of Prog Rock genres from the 60's up to recent times.
https://vimanafusion.blogspot.com/

From Middle Eastern to Prog and Jazz, this site has everything under the sun.
http://spookcityusa.blogspot.com/

80s & 90s Synthesizer filled Soul and Afro-Beat.
There is an download section on this website with a few albums but what makes this website so valuable is that it gives you an starting point on finding synth music in Africa. If you were looking to do something like, make a African based Vaporwave album, this website would be a good starting point.
afrosynth.blogspot.com/

Lo-Fi Prog, Punk, Ambient & Garage Music
http://dieordiy2.blogspot.com/

Obscure 90's Soul and Electronic Albums.
To access download links for new first-time posts, click on the link below to be taken to his "Music Spectrum: New Links" page on Twitter:
MUSIC SPECTRUM: NEW LINKS

Everything from Electro, Disco, Prog, Drone, Jazz, Rock & Ambient
http://opiumhum.blogspot.com/

One of the more interesting blogs I've run across especially if you're into Vaporwave and Future Funk.  Tough and rare Disco and Electro Singles.
http://melodiesmagic.blogspot.com/