Most of the reading I do is also non-fiction, but mostly science-related. One of these days (after I retire), I plan to get into history more deeply.
There WAS a pretty bad slack period for a number of years, but some of the newer authors beginning to publish now show real promise.
"As for Laumer, his "Bolo" series is great, along with his amusing tongue-in-cheek "James Retief.""
If you like the Bolo stuff, you need to read John Ringo and David Weber's stuff (both as separate authors and as collaborators). Ringo has done the best treatment of powered armor since Heinlein's "Starship Troopers".
John Ringo and David Weber are duly noted.