Whitest rhymes with:
rightist, absolutist, adventist, chartist, clarinetist, corporatist, cutest, defeatist, dramatist, egotist, elitist, flutist, hypnotist, jeanbaptiste, leftist, neuroscientist, pragmatist, rightist, scientist, separatist, shortest, statist, unnoticed
Whitest sounds like:
watched, wedged, wedgewood, wedgwood, wetsuit, wettest, whiteside, whitewashed, whitsett, whitsitt, widest, widget, withstood, woodshed, woodside