Vallo rhymes with:
cavallo, ballo, ballow, balogh, balow, barbagallo, bordallo, callow, caraballo, cavallo, corallo, gallo, gallow, hallow, lallo, mallow, mondallo, pallo, palo, rallo, ranallo, salow, sandalo, schalow, shallow, tallo, tallow, tarallo
Vallo sounds like:
vaal, vahl, vahle, vail, vaile, val, vala, vale, valea, valeo, valhalla, valhi, valia, valla, valle, valleau, vallee, vallely, valley, valli, vallie, valu, value, vaupel, veal, veale, veil, vela, veley, velie, vella, velo, vevila, viable, vial, viall, viel, viele, vila, vile, villa, ville, villela, villella, villi, viola, viole, vipul, viyella, voell, voila, volio, voll, volle, volley, vowel, vowell, vullo, vuolo