I used to play the whole Spitz playlist on youtube several years back lmao. Found them because youtube used to push Robinson on every single video I watched, even if it's not Japanese or otaku related.
I was also really into Suneohair back in my college years. Found him through Honey and Clover as several of his songs were used as the anime's ending track (Waltz and Split). I was mesmerized by how good the soundtrack of the show was so I checked the other works from the featured musicians and there I found his whole discography through youtube, funny enough. This is probably my favourite song from him.
I don't know why, might be because I wasn't paying attention, but one of Spitz's songs was actually used in this anime and I didn't even notice.