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