A couple of slightly less well known Sci-Fi recommendations

Tower of Glass is about a egotistical businessman called Simeon Krug and his obsession with contacting the Ayyys. He has already given the world androids- red skinned artificial slaves separated into three castes- alphas, betas and gammas. Like in Huxley's Brave New World, the alphas are the smart ones and Alpha Thor Watchman is placed in charge of building Krug's tachyon transmitter which we plans to use to answer an alien signal from the stars. This structure is the Tower of Glass. However, the androids are not just docile slaves. Many look towards a time when they will not be slaves. The Android Equality Party is one manifestation of this dream. Another is the Church of Krug- a church which Thor Watchman and Alpha Lilith Meson are high priests. Meson has become a lover of Krug's feckless son Manuel, in an effort to awaken him to the plight of his father's creations. They hope to create an escatological event between father and son which will trigger Krug to enact the long prophesied emancipation of android-kind. This book features a ton of graphically described fricking.

Man Plus is the Six Million Dollar Man if Lee Majors got his peepee cut off. The book describes in horrifying detail every day of the experiment to turn a human astronaut into a Superman capable of living on Mars. The story is entirely told from the perspective of this hapless subject.

He is initially very enthusiastic but becomes increasingly unnerved by the callousness of the people to whom he has signed his life over. One morning he wakes up to find his genitals have been removed and a frick-up with admin meant nobody told him it was going to happen.

The book is a critique of the concept that progress is always a good thing and science always has the answers. Probably not for the squeamish, however.

(Fine if you're cool with castration stories tho)