Here's what rhymes with iho.
so though show tho fo foe ho ceux faut hoe sew soe vo sho zo no know go low co flow slow snow throw row lo bo doe dough fro mo po ro toe wo woe thro tow yo beau goe jo ko beaux cho dau floe mow noe roe yeux rho stow throe sloe whoa doh schmo schmoe although below ago blow grow pro glow quo bestow chateau crow hello bio nouveau uno tuo bro chateaux trow chapeau deathblow kayo chapeaux borzoi resew ratio audio folio forego forgo aglow dicho escrow siglo topos dunno trousseau kapok oleo tarot turbot foreknow gateau matzoh fatso gateaux pekoe trousseaux radio embryo overthrow plateau studio buffalo overflow indigo patio stereo polio propos tableau vertigo aliquot cameo medico mistletoe outgrow rodeo spatio tableaux plateaux adagio piccolo overgrow regrow bandeau romeo tallyho undergo calico dynamo apropos domino presidio afterglow oregano undertow portico bungalow politico pianissimo pistachio pompano mustachio microdot moustachio portfolio impresario archipelago braggadocio generalissimo