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