Quitting rhymes with:
acquitting, acquitting, unwitting, whitting, witting, acquitting, admitting, befitting, bitting, committing, emitting, fitting, flitting, gritting, hitting, knitting, omitting, permitting, pitting, refitting, resubmitting, sitting, slitting, spitting, splitting, submitting, transmitting, unremitting, unwitting, whitting, witting
Quitting sounds like:
question's, questioning, questionings, questions, questions', quieting, quietness, quotations, quoting