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