Wishers rhymes with:
fischer's, fisher's, fishers, fissures, afshar's, bashers, boshers, brashers, crushers, desrochers, dishwashers, extinguishers, finishers, fischer's, fisher's, fishers, fissures, flasher's, flashers, glacier's, glaciers, gushers, hampshire's, hamptonshire's, hasher's, hashers, kingfishers, mushers, new-hampshire's, photofinishers, pressure's, pressures, publisher's, publishers, publishers', pushers, staffordshire's, ushers, washers
Wishers sounds like:
wagers, washers, wazir's, weicker's, wesker's, whiskers, wieczorek, wiegers, wiggers, wisecrack, wisecracks