I've been listening at work for years and what works for me is:
Dark (in minor) soundtracks (electronica and classical).
Classic rock (usually in minor) that has a mostly consistent sound.
and various types of white (and other colored) noise in https://mynoise.net/ (where I donate so there are no limitations)
I used to listen to Pandora and other stations, but I found the transitions and switching songs would get distracting, so now I just listen to the same set of songs on loop.
For example, datassette starts off with big differences in volume: http://musicforprogramming.net/?three
I've been listening at work for years and what works for me is:
Dark (in minor) soundtracks (electronica and classical).
Classic rock (usually in minor) that has a mostly consistent sound.
and various types of white (and other colored) noise in https://mynoise.net/ (where I donate so there are no limitations)
I used to listen to Pandora and other stations, but I found the transitions and switching songs would get distracting, so now I just listen to the same set of songs on loop.