Doubts rhymes with:
about's, bouts, couts, coutts, drought's, droughts, flouts, fouts, foutz, houts, houtz, louts, out's, outs, pouts, scout's, scouts, shouts, snout's, snouts, spouts, sprouts, thereabouts, touts, trout's, youtz
Doubts sounds like:
david's, davidge, davids, deadbeats, debate's, debates, debt's, debts, debuts, defeats, depot's, depots, depths, deputies, deputize, deviates, devotees, devotes, diabetes, diabetic, diabetics, divides