You have already listed some good options. Scions are Toyota based and fairly reliable. You might consider the Honda Element. We had one a decade ago and love it before it was totalled. CR-V platform and reliability but had tons of cargo space, great visibility and a real tailgate. Clamshell side doors made it easy to load things from side as well.
You might also consider a used minivan. Something like an old Toyota Sienna would have more space than the other cars listed while getting similar gas mileage. Rav 4 would be another option. Reliable on a Corolla chasis.