Qua rhymes with:
artois, bois, bourgeois, brisbois, chargois, cheng-hua, comtois, contois, francois, gravois, harnois, hwa, joie, laframboise, langlois, lavoie, marois, moi, salois, sirois, suhua, trois, valois, wa, waah, wah
Qua sounds like:
q, q's, q., q.'s, q.s, qawi, qi, qiao, qu, quach, quack, quacks, quai, quake, quake's, quakes, quash, quasi, quassia, quay, quaye, que, queasy, queau, quechee, quek, ques, queue, queues, qui, quiche, quick, quickie, quigg, quik, quiz, quizzes, quo