Read everything Bernard Cornwall has written, start with the Sharpe Series, read Sharpes Eagle which was the first book then follow the peninsular campaign first, the rest got added later as the TV series made him a bit more popular.
The Athurian Legends in the Warlord Chronicles are also well worth a read, historically a lot of it is accurate and well researched, he’s a bit of an anti christian (Cornwall) so it should suit the taste of most who read these boards.
The Grail Quest is excellent as are the Saxon Storys of the period when Alfred the Great eventually unified the country, so you get action and some historical education you might have missed. All suitably bloody, gory and superbly written, thoroughly recommend them.
I find Tom Clancy OK but a bit heavy on the padding, his Jack Ryan novels were good but boring in places where you got the feeling he was just trying to write a thick book.
If you’ve not read them, the James Bond novels by Fleming are actually a good read, nothing like the movies for the most part and definitely not PC so maybe not that tasteful for some of you.
Other favourites of mine are anything written by Michael Chrichton and some of that legal stuff from John Grisham.