Procol Harum for the most part anyway save perhaps their earliest lp or so.
Caravan is another similar.
Camel, Kayak and Klaatu and The Cars also come to mind.
I suppose The Moody Blues qualify as well though the sound of many of teh classic 7 albums are somewhat atypical compared to what many might consider to be great sound.
Genesis for the most part also starting with Trespass though some of theirs ATTWT and later started to become less consistent.
Yes mostly , at least up until Relayer and including Drama.