All shuttles are functionally identical, and have no skill requirements in order to fly, so choose based on price or appearance.

Beyond moving yourself from one location to another rapidly, shuttles are also useful for carrying small items due to a 10m3 cargo hold, and a small number of missions where combat is not required (and you do not wish to risk a more expensive ship). However, be aware that while you align rapidly in a shuttle, it is possible to be instantly destroyed by some ships before entering warp, so carrying high value items such as implants, skill books, and boosters may be ill advised.