Wallo rhymes with:
swallow, wallow, apollo, arebalo, arevalo, calo, carballo, carollo, cefalo, dalo, depalo, dzialo, figallo, follow, garafalo, garofalo, gonzalo, hollow, khumalo, lovallo, mallo, malo, manalo, margalo, metallo, mollo, musalo, pangallo, pollo, rollo, ruffalo, salo, solow, strollo, swallow, vassallo, wallow, zollo
Wallo sounds like:
waal, wahl, wahle, wail, wal, wala, wale, wall, walla, walle, walley, walleye, wallie, wallow, wally, waylay, we'll, wehle, weil, weill, well, welle, weyl, whale, whaley, whalley, wheel, while, who'll, whole, wholey, wholly, wil, wile, wiley, will, willa, wille, willey, willi, willie, willow, willowy, willy, wily, woehl, wohl, wola, woll, wolle, wool, wooley, woolley, woolly, wooly, wuli, wyle, wylie, wyllie, wyly