Here's what rhymes with maru.
you u oo ou lieu ooo lu rue eu loo yew yu ewe mieux oooo ooooo ru mew 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 shou shrew thu tue vou vue wou wu clew goo moo pooh poo shoo gnu slue thew whew phew into screw anew renew undue accrue ensue stew undo untrue adieu ado piu skew sinew sprue tzu vnto imbue redo strew halloo spew valuer endue indue muumuu achoo review pursue bamboo canoe debut taboo tattoo beaucoup eschew outdo revue shampoo askew outgrew fondue foreknew zebu kazoo marabou wazoo booboo regrew interview revenue overview residue withdrew avenue retinue subdue caribou construe jusqu overdue overthrew kangaroo overdo ballyhoo honeydew bestrew overflew overshoe prevue overdrew overgrew atishoo hitherto rendezvous cockatoo bugaboo peekaboo buckaroo superglue barbecue hullabaloo barbeque misconstrue