That hardly ever works for me. It's either "here's another artist that's like these ones, only more mediocre" or completely crazy ones, like a playlist of the album Ilana (The Creator) by Mdou Moctar, a Berber electric guitarist, where Spotify recommendations are all for Tyler The Creator.
I really recommend Aza (Tamazight influence from the Atlas Mountains of Morocco). I've seen them live a bunch of times. (I attended this particular performance!)
Yeah, I love Tinariwen. Interesting piece of trivia - I saw the guitarist Matt Sweeney (Chavez, Zwan, Bonnie Prince Billy, touring with Iggy Pop etc. etc. etc.) mention Mdou Moctar on Twitter a few times, and was about to recommend Tinariwen, only to discover that he'd played on one of their albums!
Thank you for bringing Mdou Moctar to my attention. Holy crap, that is one hell of an album, it's been on constant repeat since yesterday and I just can't stop listening!
Holy crap, I heard this guy years ago and loved his work, but then forgot his name and couldn't find him again. Thank you for bringing this music back to me!
His latest album is incredible - there are days I have Tarhatazed on a loop for an hour or two when coding (you need to be in the right frame of mind for that to work though!)