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