Lloyd, take a walk on the wild side and give my favorite author a try - James Lee Burke.
He has several main protaganists he has developed over the years, but the one he is most famous for is Dave Robicheaux, who used to be a New Orleans cop but now primarily works out of the New Iberia sheriffs department.
Dave’s a sober dude, having overcome his demons, which I personally dig (JLB himself has been sober over 25 years at this point). What he brings to it that Lee Childs lacks is (my opinion) he’s a far better writer. I consider him one of our finest American novelists. The beauty of his descriptions of the locale, weather, and his moral depiction of the motivations driving his characters far surpasses Lee Child’s work. There is always an underlying moral theme that goes deeper than what I see in Childs work.
You may or may not like the subtle politics involved, clearly JLB loves the New Orleans and Louisiana area and is none too happy with the prior administration’s lack of response about Katrina, but he doesn’t let it play a major role in his writing, he just expresses his opinions and leaves it at that.
I’m not saying I don’t like Childs/Reacher, they’re favorites too and I don’t miss a one, I’m just saying I find JLB to be more of an author’s author in his level of refinement and how he invests you in the plot and characters that Childs doesn’t come close to, for me.
In many respects, when push comes to shove, Reacher and Robicheaux are going to go to the same place, they get to the point of no return and god help their foes at that point. I’ve had some folks who I recommend JLB to who didn’t like the violence that ultimately results, but I always like that aspect of a book when the main character has taken more than humanly possible and has no choice but to strike out to protect his loved ones, and what he believes in…
JLB is also famous for having had his first novel rejected more than anyone else, I believe it was rejected over 100 times before it was published. At this point, he’s in the upper echelon and if you like what you read, you’re in for a treat because he has been plying his craft a long time (there are 15 or more books that will deliver consistently fine writing). He gets compared to Cormac McCarthy (sometimes unfavorably), bottom line for me is they too are different writers and I enjoy them both.
Further Edit: Another writer and protaganist I discovered that you might like is John Connolly, who has a character named Charlie Parker (like the Jazz great) who ends up in Reacher like circumstances. Again, I find Connolly to be a better writer than Childs, his plotting is more complex, and if you like the series there are probably close to ten of them you would enjoy…