Recs if you like Second Variety...

Enter the dizzying mind of Philip K. Dick, one of the most prolific and impactful science fiction writers of all time; explore paranoia, grief, mind-altering substances, the nature of existence and what defines our humanity, distinguishes us from ersatz counterfeits, and altered and simulated realities warped by technology and drugs.

slowburn, foreboding, ominous. and existentially dreadful.