Another fun author, much newer on the scene than Stasheff is John Ringo. He was recommended to me by a blurb on the cover by an author I really like. My husband hates that author. But both of us like Ringo.
This is his home page and it is pretty funny.
The only thing is they say in his “Legacy of the Aldenata” series that he has finished four. Only three are in print or available anywhere I know of. This is a space war story where the aliens are coming to earth to eat us. They appear to be hungry. We have some alien allies, but some of them seem to be serving us up for dessert, too.