Drupes rhymes with:
group's, groups, groups', intergroup's, troop's, troops, troops', troupe's, troupes, coupes, dupes, group's, groups, groups', hoopes, hoops, intergroup's, koop's, koops, loops, oops, poops, recoups, scoops, soup's, soups, stoops, swoops, toops, toups, troop's, troops, troops', troupe's, troupes, whoops
Drupes sounds like:
darby's, derives, derubeis, dervish, dervishich, diatribes, drabek, drabik, drabs, drapes, dravecky, draves, dravis, dravo's, drawback, drawbacks, drawbaugh, drebsky, dreyfus, dreyfus's, dreyfuss, dribs, dripps, drips, drive's, drives, driveways, drop-offs, dropoffs, drops, dropsy, droves, dwarfs, dwarves