Well, 'Red Storm Rising' by Tom Clancy is a top pick. It's filled with intense military action and showcases special forces' capabilities. 'The Terminal List' by Jack Carr is also excellent. It follows a Navy SEAL on a quest for vengeance, and you get to see the special forces mindset and skills. Then there's 'American Sniper' by Chris Kyle, which is not only about sniping but also gives insights into special operations.
A really good special forces fiction book is 'Gates of Fire' by Steven Pressfield. It tells a story set in ancient times but has elements that are relevant to special forces like discipline and camaraderie. 'Ghost Soldiers' by Hampton Sides is also worth reading. It details a daring rescue mission. And 'Lone Survivor' by Marcus Luttrell is a powerful story about Navy SEALs and their sacrifices.