Not too much, but I love Stephen King. I don't go too far out of my way to find thrillers, I like all sorts of stuff.
John Grisham has some good thrillers, but most of his books are law thrillers, not normal ones, but there are a few of the good old kinds.
"In the first place, God made idiots. That was for practice. Then he made school boards."
He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.
"If it turns out that there is a God, I don't think that he's evil. But the worst that you can say about him is that basically he's an underachiever."