If you like Space Opera, try the Kris Longknife series (starting with Kris Longknife: Mutineer) and the Aeon 14 books by M D Cooper (starting with The Complete Intrepid Saga) - all of which are on Kindle. Also on Kindle: Columbus Day (Expeditionary Force Book 1) All books in the series John Ringo’s Empire of Man series starting with March Upcountry
Glad I read the small print note BEFORE I posted my original comment!!