Otha rhymes with:
ah, aha, ahh, alvah, artois, awe, baccarat, bah, beffa, bekaa, blah, bogota, bois, bourgeois, bra, brisbois, cha, chargois, cheng-hua, comtois, contois, da, elga, elna, francois, ga, gravois, ha, hah, harnois, hsia, hurrah, hwa, ja, jha, joie, ka, kah, krah, la, laframboise, langlois, lavoie, ma, macgraw, mah, markkaa, marois, mccaa, moi, murrah, na, nah, naw, olah, ona, pa, pasha, pla, qua, ra, rah, raw, refah, rha, sa, salois, sanaa, seraw, sha, shah, sirois, spa, suhua, ta, trois, valois, voila, vrba, wa, waah, wah, ya, yah, zsa
Otha sounds like:
o'day, o'dea, o'dowd, oad, oat, oath, oathout, oda, oday, odd, oddi, oddity, oddy, ode, odea, oded, odette, odowd, ot, ota, otey, ott, ottawa, ottaway, otte, otto, out, outdate, outdated, outdid, outdo, outed, outta, outwit, outwitted, owada, owed