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