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