Here's what rhymes with conwho.
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 wazoo true blue drew grew que crew pursue blew q screw anew clue cue glue queue cu ensue adieu ado brew pew skew eschew kangaroo mieux sprue vnto clew mew strew halloo spew valuer zebu kazoo achoo atishoo into review withdrew avenue canoe renew undue accrue rendezvous subdue taboo undo untrue jusqu overdue piu tattoo beaucoup outdo revue shampoo sinew askew imbue overdo redo ballyhoo cockatoo honeydew endue fondue foreknew indue muumuu overshoe booboo interview revenue hitherto overview residue bamboo debut caribou construe overthrew outgrew bugaboo marabou bestrew buckaroo overflew prevue overdrew overgrew regrew retinue peekaboo superglue barbecue hullabaloo barbeque misconstrue