Phantom and ghost ships.

I wouldn’t be too exited, by the time you get to a level where ships are important/meta relevant you’ll have realised they are not important (right now) outside of getting thrawns ship.

Also the rework is coming, so unless they suddenly get a buff that makes them relevant, then I wouldn’t spend real money on them and just grind them out of the shop as @Yerff_Caasi pointed out.