Here's what rhymes with etso.
so though show tho fo foe ho ceux faut hoe sew soe vo sho zo no know go low co flow blow slow snow throw pro row lo 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 borzoi schmo schmoe although below ago grow glow quo audio bestow chateau crow hello nouveau uno dicho topos chateaux dunno trousseau chapeau tarot turbot deathblow kayo matzoh chapeaux fatso pekoe trousseaux resew ratio radio embryo plateau buffalo folio indigo patio forego forgo polio propos tableau aglow escrow medico outgrow rodeo siglo tableaux plateaux adagio kapok oleo foreknow bandeau gateau gateaux tallyho overthrow studio undergo overflow stereo dynamo vertigo aliquot apropos cameo domino spatio piccolo undertow overgrow regrow romeo portico bungalow calico politico mistletoe presidio afterglow oregano pistachio pompano mustachio moustachio portfolio impresario pianissimo microdot braggadocio archipelago generalissimo