I have only perused free materials, but Rory Crabb Naval Command seems promising.
Shipwreck is not bad. But very traditional, let's call it a streamlined and less granular Harpoon.
David Manley's bulldogs away is alos very, very good. Not that complex, but extremely realistic (David being David...). It is aimed at small craft actions, but nothing prevent you to use larger ships (frigate/destroyer).
To be quite honest I found that in 1970+ games probably the small approach works better with miniatures due to ranges and capabilities. Even with Harpoon I ended up eschewing larger actions. Reducing the number of ships made even Harpoon easy.
Larger actions (let's say attacking a CVBG...) are played better with hex and counter wargames (Fleet Series from Victory Games soon to be reprinted by Compass or even Compass' South China Sea) or going to a very abstracted route. I have tried Dan Verssen Modern Naval Battles (both the new edition, and the old, free now, edition) replacing the ship card with miniatures, and the results are interesting.