How-about rhymes with:
about, about, bout, about, all-out, bout, clout, crout, devout, doubt, doutt, drought, flout, fout, gout, grout, hout, kraut, krout, lout, out, pout, prout, raut, redoubt, rout, routt, scout, shout, shrout, snout, spout, sprout, stake-out, stout, stoute, strout, throughout, thuot, tout, trout, troutt, without
How-about sounds like:
habit, habitat, haft, hafta, haupt, heaped, heaved, hebda, heft, hefti, hefty, hibbett, hobday, hobdy, hoeft, hoevet, hoofed, hoped, hopped, hopwood, houpt, hovda, hovde, huffed, hyped