A squat LEGO rock-hopper will get the job done

This compact asteroid prospecting ship, made of LEGO by Jan Woźnica, would fit in very well in the universe of The Expanse, with structural supports and a engine-as-down design common among the working class “belters” spacecrafts. The overall shape even reminds me a bit of an asteroid, with an almost ovoid shape. The small maneuvering thrusters at the back and sides are a nice detail, and that airlock is perfectly placed for any needed spacewalks.

Asteroid Hopper