[Pax]

I use transports for larger colony ships. If I'm playing a Max-Tech start game (solo ofc), I tend to go the expensive but low-brainpower route, and use a Large Transport hull to mount all THREE colony module types. Saves counting up how many gas, ice, or rock colonisers you need, etc, etc.

And even a Medium Transport can haul slightly more population (just over 100M, say), with many more supply bays, for a much longer net range.