Here's what rhymes with motso.
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 borzoi schmo schmoe below ago grow glow quo bestow chateau crow hello nouveau tableau uno aglow dicho tableaux topos chateaux dunno trousseau adagio chapeau tarot turbot deathblow kayo chapeaux fatso pekoe trousseaux resew ratio radio plateau buffalo folio patio forego forgo polio propos escrow medico outgrow rodeo siglo plateaux kapok oleo foreknow bandeau gateau gateaux mustachio tallyho embryo overthrow studio undergo overflow indigo portico stereo dynamo vertigo aliquot apropos cameo domino mistletoe spatio piccolo pistachio undertow overgrow regrow pompano romeo moustachio portfolio bungalow calico politico presidio afterglow oregano microdot braggadocio pianissimo archipelago impresario generalissimo