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