I know that this is an obscure and very niche request, but I thought if there ever was a place to try it would be here. For those that are unaware, Blood Incantation is a prog death metal band that makes music based around the themes like consciousness, the universe, and extraterrestrial life. If someone were to ask me the same question, I would probably recommend Slaughterhouse Five, Semiosis, and American Cosmic. Do you have any I could add to that list?