Artlist.io is a platform for music where you can find suitable royalty free music for your YouTube videos, instagram stories, video productions, making-ofs and all other uses. Unlike many other platforms, Artlist.io does not work with complex licensing models but with a simple flatrate model. Pay once a year and download as many songs as you want. Recently, there is also a separate subscription for sound effects. You can read my experience report about the platform here.