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