Vince Flynn definitely. Good points by jake47 in the Clancy books are good but very detailed and wordy. I understand you have to fill a book and give the reader an idea of what’s happening, but I personally am not one that enjoys starting a chapter with “the coffee was piping hot. He had been trying to cut back on the amount of cups he drank each day, but with the problems in the city not going away he knew that wasn’t happening anytime soon. His khaki tactical work pants smelled of the fabric softener he had used recently….” Again, good books that eventually become page-turners, but sometimes can be a slow build.
If you like the spy type of stuff or books dealing with tactical, sneaky, classified-type matters the last 20+ years of the war on terror have produced some great reads. An author that goes by Dalton Fury has had some great real-life true story books as well as some fiction. He was part of the Delta Force elements trying to track down Bin Laden in late 2001. I’ve met him a few times through my previous employer and he’s a great guy that unfortunately passed away a few years ago.
Try American Sniper by Chris Kyle if you haven’t. That and Lone Survivor from Marcus Luttrell are unbelievable reads especially knowing these events actually happened. Zero Dark Thirty (the book) is outstanding to get a look into all the details that had to come together to ultimately locate Bin Laden. Blackhawk Down is also 100% worth the read.
I find it very interesting reading books by former Secret Service as well. There’s a real good one I read written by a career Secret Service guy who’s career culminated in working President Reagan’s personal protective detail. One interesting part of that was the need to rehearse and drill for worst-case scenarios while the President was riding horseback on his ranch in California.