John Ringo’s Posleen War series, also his zombie-plague books (I forget what the series is called). Hell, John Ringo anything, and Baen Books in general for that matter.
Or how about Larry Correia’s Monster Hunter series?
I’ll quit now. You’ve got a few years’ worth of recommendations from FR readers.
I’ve never read a book by Ringo, seen them, just never gave him a try. Thanks