Recommendations for near future space combat books?

Thinking about a modified version of Full Thrust for lower tech space  
combat. Smaller fleets, no screens, maybe no FTL, lots of missiles and	
guns.

The research phase consists of reading books. So far I've got the
Expanse  
series, Aliens Colonial Marines Technical Manual, and the two Manticore 

Ascendant books by Timothy Zahn.

Anyone want to recommend others?

-- 
	 cheers,
	 Hugh Fisher