If you enjoyed how Galaxies breaks the fourth wall and constantly calls attention to itself as a work of fiction—sometimes even interrogating the act of storytelling—you’ll be fascinated by VALIS. Here, the protagonist Horselover Fat (a stand-in for Dick himself) embarks on a mind-bending journey that blurs the lines between reality, narrative, and hallucination, with the story looping back on itself and questioning its own existence.

If you were captivated by the existential questions and philosophical musings in Galaxies—about perception, reality, and the limitations of language—you’ll find Solaris deeply rewarding. The novel follows Kris Kelvin as he tries to comprehend an utterly alien intelligence, forcing both him and the reader to grapple with the nature of consciousness and the unknowability of the universe.

If you appreciated how Galaxies leaves you doubting what’s real and what’s invented—thanks to its shifting narrative and unreliable storytelling voice—you’ll be drawn into The Affirmation. This book’s protagonist, Peter Sinclair, becomes lost in a layered, ambiguous reality, making you question whether what you’re reading is fantasy, delusion, or something in between.

If you enjoyed the sardonic, bleakly comic tone of Galaxies—where even the fate of the universe seems absurd—you’ll love The Sirens of Titan. Vonnegut spins a tale full of cosmic coincidences, dark jokes, and a universe that cares little for human aspirations, all delivered with biting wit and existential irony.

If the aspect of Galaxies that resonated most was its focus on characters, society, and the inscrutable reality of the cosmos—rather than on hard science—then Roadside Picnic is a must-read. Redrick "Red" Schuhart’s journey through the mysterious Zone is less about the alien artifacts and more about the psychological and societal impact, mirroring the human-centric approach you enjoyed.