Five of my favorites: “The Man Who Folded Himself,” by David Gerrold, “Time and Again,” by Jack Finney, “The Proteus Operation,” by James Hogan, “Last Year” by Robert Charles Wilson and “The First Fifteen Lives of Harry August,” by Claire North.
The 23 Best Time Travel Novels - a collection dating from the 1950’s through today. Despite paradoxes, time travel is a fascinating concept and makes a great read.