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