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