Whiners rhymes with:
decliners, designer's, designers, designers', dinars, diners, liner's, liners, liners', meiners, miner's, miners, miners', minors, niners, niners', refiner's, refiners, refiners', reiner's, reiners, shriners, signers, steiner's
Whiners sounds like:
weinreich, weinrich, wenrich, wenrick, wiemers, wieners, wineries, winery's, winiarski, winner's, winners, winners'