LemonMelon
More 5G Than Man
They've done EPs too. The Silver EP might be a good place to start, especially as it's stylistically varied. I've seen the track Star referred to as being almost drone pop.
Have you heard Opeth's song Bleak? That's the song that eased me into death vocals. Sure, the first few minutes are just chugging guitars and Akerfeldt growling, but then it transitions into beautiful clean harmonies between Akerfeldt and Steven Wilson. And, of course, there's the acoustic Damnation album which has no growls at all - nor any metal, besides perhaps an atmosphere inherent to all their albums.
I just listened to the song Old Year for whatever reason and was very impressed. Unusual melody crossed with an enveloping atmosphere.
Steven Wilson He saves this song.
You know what artist I really hate? Mars Volta. Fuck them.