Audio Hero - Over 250,000 royalty free music & sound effects for videos
Thematic - Free Music for YouTube Videos & Creators • No Copyright
TunePocket - Download 11,000+ royalty free music tracks and sound FX. Buy once, use forever. New music added daily. Save over 50% compared to most popular similar services. Incredible value!
Music For Makers - Licensing good music has never been this easy.
Strikefree Music - 5 free unique, royalty-free tracks for your videos / week
Fugue - Free and premium stock music for your videos, games, and UI