Choose a small basket, a big basket, or just a flat rack for either the front or the rear, depending on the cargo, and add a child seat to the back if needed.
A bike is a bike is a bike, except when it’s a cargo bike. For some reason, when people think of the term cargo bike, they often conjure up an image of a huge bulky bike, and perhaps something with three wheels like a pedicab or the adult tricycles marketed to older folks, but that’s not always the case.