Here's what rhymes with costos.
Words that almost rhyme with costos
crossbows autos cargoes gallstones grottoes mottoes quartos grottos cargos mottos jatos follows sorrows hollows borrows crossroads todos carloads gaols condos llanos tacos torsos wallows cartloads quangos bongos combos morrows nachos dagos largos oxbows arseholes bongoes condoes hormones swallows mulattoes boreholes potholes foxholes mulattos ponchos portholes armholes crossbones jawbones broncos charcoals hearthstones bronchos honchos knotholes longbows rondos sawbones staccatos mikados embargoes wardrobes avocados tomorrows garbanzos saguaros avocadoes siroccos washbowls gestapos supercargoes tremolos glissandos supercargos terrazzos strongholds desperadoes metamorphose desperados aficionados amontillados