Xoma rhymes with:
algoma, aroma, bancoklahoma, bouma, carcinoma, choma, coloma, coma, diploma, douma, glaucoma, goma, homa, leoma, loma, luoma, lymphoma, melanoma, mesothelioma, moma, multnomah, naoma, neoma, nujoma, oklahoma, oma, paloma, papilloma, poma, retinoblastoma, roma, saloma, scoma, shiroma, sloma, soma, sonoma, stroma, sumatoma, tacoma, thoma, toma, troma
Xoma sounds like:
xan, xena, xene, xenia, xenon, xiamen, xian, xiaoyun, xinhua, xuan, xuemei