Here's what rhymes with reliquo.
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 hoe jo sew soe vo beaux cho dau mow noe roe sho yeux zo rho whoa doh regrow kayo pekoe resew flow blow slow snow throw pro fro thro bio uno aglow aliquot dicho floe tuo bro stow throe trow kapok sloe gateau gateaux schmo schmoe although below ratio radio plateau audio chateau hello indigo calico forego forgo nouveau propos cameo escrow medico outgrow rodeo siglo topos chateaux dunno plateaux trousseau chapeau oleo tarot turbot chapeaux trousseaux borzoi romeo tallyho embryo undergo bestow folio patio portico stereo polio politico tableau vertigo apropos tableaux oregano piccolo deathblow foreknow overgrow bandeau matzoh fatso overthrow studio buffalo overflow archipelago bungalow dynamo domino mistletoe spatio afterglow adagio undertow microdot presidio pompano portfolio impresario braggadocio pianissimo pistachio mustachio moustachio generalissimo