Iba rhymes with:
akiba, alysheba, amoeba, bathsheba, biba, bourguiba, chiba, ciba, cohiba, curitiba, eba, gleba, katashiba, kosiba, nechyba, reba, rebbe, riba, saliba, sheba, toshiba, veba, zieba
Iba sounds like:
i've, ib, if, iffy, ip, iva, ivey, ivie, ivo, ivy