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