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