"Trance Music for Racing Game" by Bobby Cole is the starting music for Dream's Minecraft Manhunts, and is equally epic. It's become synonymous with Manhunt itself and eventually Dream himself.
"Strange Things" by Zac Nelson is another theme Dream frequently uses in chase scenes. And then there's "Phantom" by the same creator, which is essentially just a more electronic/techno remix of "Strange Things" kicked up that Dream uses in lieu of its predecessor in the "4 Hunters Rematch" video's opening scene.
"Sons of Tomorrow by Adrian Berenguer, an epic cinematic theme that plays in the "4 Hunters" video's final fight.
"Break the Road" by Diego Martinez plays as Dream prepares his Nether Portal trap. Perhaps the coolest part is that, in the video proper, the song's guitar is perfectly timed to begin playing as Dream puts the trap into play against the hunters. There's also a version with additional instrumentals, which isn't used in the video but is still awesome nonetheless (note that for a while, the extra instrumentals version was the only version of "Break the Road" that could be found).