In no particular order

Terry Pratchet( iwas reading strata before colour of magic came out
Fritz lieber Fafhrd and the gray mouser
Jack Vance Mainly dying earth series
Raymond Feist empire novels good
David Gemmel probably my favourite
Neil Gamon sand man series and good omens
David eddings first dozen books were very good
Tolkien but only hobbit and LOTR
Poul Anderson 3 hearts 3 lions one of my alltime favourites
roger Zelazny Choas series
Jack L chalker midnight well of souls
Asimov Hero, first sci fi I ever read = I Robot
Heinlen Ive got nearly everything in paperback but glory rd tops
Iain M Banks ( even if he is a socialist)
Laurell K hamilton best vampire series i have ever read
George RR Martin Fevre Dream particularly good
David Brin good grief I could go on and on Cllr