YouTube seems to be pretty good at this
I recently completed a demo of cover songs for an artist (hopefully an "Upcomiong artist but probably not) which consisted of very different recordings of some well known songs - different keys, different voicing and instrumentation and even arrangements in a few cases.
Aforementioned upcoming artist uploaded songs to her YouTube channel, and out of 12 recordings, 10 were correctly identified by YouTube, and attribution correctly made to the copyright holders. I was frankly impressed by the accuracy given the source material, to the degree I'd expect the problem to be more in the realm of false positives (How many songs are based on a. 12 bar blues progression in A?) .
She gets to leave the songs up, but the copyright holder gets the mailbox money.