Here's what rhymes with guagu.
you grew que u crew q clue cue glue lieu queue accrue cu lu rue loo yew yu ewe ru clew roux to who do two new through too few true view due knew blue drew du threw blew coup flew qu screw shoe zu dew hue shew su sue tu vous chew deux flue fu slew zoo brew bu flu hu ju jus ku mu nu peu pew pu seu shu skew sou thru vu woo boo chou chu coo cou doo feu fue gu hew mieux shou shrew thu tue vou vue wou wu askew goo mew moo pooh poo shoo gnu slue thew whew phew regrew anew canoe renew undue stew undo untrue adieu ado piu sprue tzu outgrew redo strew halloo spew valuer kazoo overgrew wazoo achoo into review pursue overview withdrew bamboo debut ensue subdue taboo caribou jusqu overthrew tattoo beaucoup eschew kangaroo outdo revue shampoo sinew vnto imbue bugaboo endue fondue foreknew zebu indue buckaroo muumuu overflew superglue overdrew booboo atishoo interview revenue residue avenue retinue construe overdue overdo ballyhoo cockatoo honeydew marabou peekaboo bestrew overshoe prevue hitherto rendezvous barbecue hullabaloo barbeque misconstrue