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