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