I just finished reading Storm from the Shadows by David Weber. Its the newest edition to the honorverse, and as usual leaves me wanting more.
From starting with On Basilik station, which I thought was a standalone novel at the time back in the eighties, this series spans about twenty years and is modeled on Horation Hornblower but with the protagonist being female instead of male.
Fair warning , if you start the series from the beginning and like it , you will soon note that its bibliocrack.
Do a search on Honor Harrington on the board ,and get a glimpst of what awaits.
Declan