Usually I name my ships after USN warships,
battleships:
Iowa, Missouri, Mississippi, Arizona, New Jersey, ect...
carriers:
Midway, Hornet, Enterprise, Essex, Yorktown, Lexington, Saratoga.
The other capital ships, I name whatever I feel like, could be after more USN ships, fictional ships, (Star Wars, Star Trek, BSG). And usually, I try to fit in SSV at the beginning, after Systems Alliance (I really liked Mass Effect)