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