Personally I’m into arrow shaped space ships, so I’m going to be aiming for something along those lines on my first playthrough. Think of an Anaconda from Elite Dangerous, or a RSI Galaxy from Star Citizen, how big it is depends on how the systems and ship building work.
I think I’ve always enjoyed the idea of the “smuggler” style ship, fast, with cargo space and living quarters. Dangerous too if I can manage it. A good “all rounder.” Something like Mando’s ship would be dope