Look, this question made me scroll through my reading list from the last few years. If we're talking sheer, undeniable dominance on the bestseller lists and in airport bookstores, I keep coming back to Stephen King. I know, I know—he’s the horror guy. But his forays into pure mystery thrillers are massive events. 'The Outsider' starts as a straightforward crime novel before it twists into something else, and 'Mr. Mercedes' is a straight-up, cat-and-mouse thriller trilogy. His name alone guarantees a top slot on any bestseller list, and his storytelling muscle makes those books page-turners even without supernatural elements.
That said, the consistent throne-holder for dedicated mystery thrillers is probably James Patterson. The output is industrial, and the brand is everywhere. I don’t always love the co-authored stuff, but the Alex Cross series has been a fixture for decades. The chapters are short, the pacing is relentless, and they’re engineered to be consumed quickly. For pure commercial success in that specific lane, it’s hard to argue with those numbers. My grandma, my dad, and my colleague who only reads on flights all recognize his name.
A darker horse, for me, is Tana French. She might not churn out a book every six months, but each Dublin Murder Squad novel hits the literary bestseller lists and gets serious critical praise. They’re slower, more psychological, and deeply rooted in place and character, but they sell like crazy because they offer more than just a puzzle—they offer a mood you can sink into for weeks.