Not seen that list before, and there’s lots I wouldn’t bother with, but I’ve read 49.
I would recommend Roger Zelazney’s entire works, if you can find them. I’ve read most of them many times, in particular Roadmarks and Today We Choose Faces. Larry Niven has also written a very large number of novels and short works, many very humorous, and all very much worth reading. All of William Gibson, Charles Stross, and Cory Doctorow’s books are almost essential to anyone who likes intelligent fiction, SF or otherwise; Stross’s ‘Laundry’ books are brilliant, James Bond against Cthulhu! And his other books, Halting State/Rule 34, Iron Sunrise, Saturn’s Children, are superb, very like Zelazney in his style of writing.
Many others mentioned above are all good reads, like Neil Asher’s Polity series, for example.
So many books, so little time… 😐