Science fiction is the rehearsal space for civilization. When a novel asks what happens if a machine becomes a person, it is not predicting a product launch. It is testing our ethics in a safer room.
A short list worth returning to: Neuromancer, for the texture of networked power; Do Androids Dream of Electric Sheep?, for empathy as a scarce resource; Solaris, for the limits of contact; The Left Hand of Darkness, for identity as climate; Kindred, for time as moral pressure; Hyperion, for pilgrimage; Snow Crash, for language as virus; Blindsight, for consciousness as optional; Ancillary Justice, for the self as a fleet; Klara and the Sun, for devotion without full understanding.
If you finish those and still want a technically grounded thriller, start with Decryption Gambit and keep walking the Quantum Worlds.