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