Here's a collection iTunes music playlists that I either subscribe to or I've made. Hope you like 'em...
A collection of 3,200+ songs (as of 16 Dec '18) from all of your favorite movies and video games (I'm kind of partial to the Call of Duty soundtracks though I've never played).
I found. I Like.
Just a collection of random songs I've found either from word of mouth or the likes of Reddit.
Downtempo Beats for Studying
An Apple Music mix of, well, downtempo tunes.
Living in the Library
Another Apple Music mix of great tunes that are both upbeat and a tinge of downtempo.