It depends on my mood a lot for how I focus, but I have some go-to music of my favorite bands, or if I'm tired of that, some movie soundtracks or instrumental jazz, folk music albums.
When I'm tired of my usual music, I might play some funny Bob's Burgers clips in the background or Buzzfeed videos that I can listen to on YouTube. Those are dangerous tho, cause I might just get sucked down the YouTube rabbit hole and stop working XD