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.
That’s funny, I was just thinking about how I was gonna try to make the Highwind from KH1.
Honestly, the ships they showed during the Starfield Direct are pretty much similar in design-freedom to what gummi ships allowed, like the big robot for example.