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.
Probably something big, industrial. Maybe similar to Serenity from Firefly. Maybe asymmetrical. Not sure, just gonna see what I make as I get access to the system! I’m not really one for planning this game out before it releases.