Prius... slow, ugly, low ground clearance, but is a hatchback.
Prius c has higher ground clearance (6 inches) but is still slow (more than 10 seconds).
Camry or Avalon hybrid. Not as slow or ugly, but not a hatchback (7.4 seconds in bigger Avalon HV 2014) nor high ground clearance.
https://www.motortrend.com/reviews/2...id-first-test/
Nissan Leaf?
Doing a lookup of +30mpg, 2014 or newer, hatch or wagon, under $20,000 shows up these results:
https://www.autotrader.com/cars-for-...&numRecords=25
Nissan Rogue
Jeep Cherokee
Buick Encore
Subaru Forester
Ford Escape
Hyndai Tucson
Chervorlet Equinox
Toyota RAV4
Honda CR-V