Overbook rhymes with:
powerbook, bankbook, checkbook, cookbook, guidebook, handbook, hornbook, jokebook, logbook, matchbook, notebook, omnibook, passbook, pocketbook, powerbook, redbook, rulebook, schoolbook, scrapbook, sketchbook, sourcebook, storybook, subnotebook, textbook, yearbook
Overbook sounds like:
oberbeck, overbaugh, overbeck, overbooks, overpass, overpasses, overpeck, overviews