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