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