My older son has been voraciously reading science fiction novels from the golden age of SF, namely the 1960s and 1970s. I say the golden age, because I was his age in the 1960s and at university in the 1970s, and read all the same novels. I have more than once told him that I read almost all of the “good” or “important” SF and authors of that period. My interests veered into fantasy of the Tolkien type, but at the same time the immense proliferation of second rate Tolkien copiers in the 1970s (think Terry Brooks: Shannara etc) led to me ceasing to try to read all the important authors as they were published.
I also got rid of much of my extensive SF library with time, keeping only a few authors that I particularly enjoyed (think Philip K. Dick, Philip Jose Farmer, Roger Zelazny….) and now I am buying my son SF novels from Amazon that I once used to own.
My son recently read “Stand on Zanzibar” by John Brunner and raved about it, said I had to read it. It has a huge reputation, made a big impact, and won the Hugo Award for Best Novel at the 27th World Science Fiction Convention in 1969, as well as the 1969 BSFA Award and the 1973 Prix Tour-Apollo Award. Fifty years after its first publication in 1968, it is considered one of the greatest SF novels of the period, and is still regularly reviewed and discussed.