Is there any business being the middleman among artists? Could have a musicians-only option, similar to IMDBpro, be monetized in SoundClound platform? A lyrici

Is there any business being the middleman among artists? Could have a musicians-only option, similar to IMDBpro, be monetized in SoundClound platform? A lyricist auction their lyrics among some artists, musicians sell their music to advertisers who are producing a commercial. Musicians selling to filmmakers. Dj buying the rights to remix some songs. I know there are already several businesses doing this, many separate. But SoundClound could dominate this market by having a worldwide scale. And for being the first choice of niche artists.