Brain.fm - Music designed for the brain to enhance focus, relaxation, meditation, naps and sleep within 10 - 15 minutes of use.
Koel - A personal music streaming server that works.
Soundlove.io - Choose and mix from 100+ high-quality sounds and noises to improve focus or relax.
longplay.in - Curated indie music from Bandcamp
Can't Sleep - AI music scientifically designed for sleep
Vibent - Your favorite music livestreams in one place