Here's what rhymes with respiratioi.
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 ago ratio blow grow pro glow quo chateau crow hello bio nouveau tableau uno aglow tableaux tuo bro chateaux dunno trousseau trow chapeau tarot turbot gateau kayo chapeaux gateaux trousseaux borzoi resew below radio plateau studio audio bestow folio indigo patio stereo forego forgo polio propos dicho escrow siglo spatio topos afterglow plateaux adagio kapok oleo deathblow foreknow bandeau matzoh fatso pekoe tallyho embryo overthrow undergo buffalo overflow dynamo vertigo aliquot apropos cameo domino mistletoe outgrow rodeo piccolo pistachio undertow overgrow regrow romeo portico bungalow calico politico medico presidio oregano pompano mustachio moustachio portfolio impresario braggadocio pianissimo microdot archipelago generalissimo