Narrow exterior + roomy interior = boxy.
You've already ruled out the Buick Encore.
See what you think about the Scion xB, Kia Soul, and Ford C-MAX. The last can be purchased as a plug-in hybrid, in which case you'd never use gas on your normal commute. Even the standard hybrid might leave the engine off for some of those quarter-mile runs. Beyond fuel economy, this helps long-term reliability, as it's hard on an engine to always make very short runs.
The new VW Golf might also work for you. It doesn't sit as high, but a surprising amount of space up front for a compact and comfortable seats.