Killing Floor is a first-person thriller about a drifter who walks into a small Georgia town and gets arrested for murder. If that tight, punchy, justice-driven setup hooked you, these books deliver similar energy.
A lone operative with a strict moral code helps desperate people. More gadgets than Reacher, same satisfying justice.
A CIA assassin on the run across continents. Relentless pacing and detailed tradecraft.
Short chapters, fast plot, done before the flight lands. Alex Cross is a detective, not a drifter, but the pacing is the same.
LAPD detective Harry Bosch solves cases through persistence, not fists. More character depth, same justice drive.
CIA counterterrorism with a protagonist who operates on a very long leash. More political than Reacher, same blunt force.