Lots of the mega authors are easy, mindless readers. Baldacci, Connolly, Silva, Carr, Petrie, Greany, etc.
Some of the previous generation were excellent: Ludlum, Forsyth, DeMille, LeCarre.
One I haven’t seen mentioned and has sucked me in on a couple of his books (Poland was excellent) was James Michener. Others I never finished.