https://en.wikipedia.org/wiki/Honorverse
I started with On Basilisk Station last month. Now I'm on Honor of the Queen. This is one of the nerdiest series that I've gotten into. It's so naval-nerdy that it sometimes hurts. I'm digging it though.
On Basilisk Station (April 1992) ISBN 0-671-57793-X / HH1
The Honor of the Queen (June 1993) ISBN 0-671-57864-2 / HH2
The Short Victorious War (April 1994) ISBN 0-671-87596-5 / HH3
Field of Dishonor (December 1994) ISBN 0-671-57820-0 / HH4
Flag in Exile (September 1995) ISBN 0-671-31980-9 / HH5
Honor Among Enemies (February 1996) ISBN 0-671-87723-2 / HH6
In Enemy Hands (July 1997) ISBN 0-671-57770-0 / HH7
Echoes of Honor (October 1998) ISBN 0-671-57833-2 / HH8
Ashes of Victory (March 2000) ISBN 0-671-57854-5 / HH9
War of Honor (October 2002) ISBN 0-7434-3545-1 / HH10
At All Costs (November 2005) ISBN 1-4165-0911-9 / HH11
Mission of Honor (June 2010) ISBN 1-4391-3361-1 / HH12
A Rising Thunder (March 2012) ISBN 1-4767-3612-X / HH13
Uncompromising Honor (October 2018) ISBN 9781481483506 / HH14