I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
gurus grues gaurs guars kurus guiros grouse curs gurries curious gars crus curse gross gorsy goers cures grass grows cruse gorse grays gores greys currs grees grease curies cruise kauris queers curios course kouros grassy quires greasy crouse cuirass carious curiosa queuers kauries curries carouse queries quaeres quarries curassow cars cors cris kirs kors kris
gurus urus kurus burrs giaours auris grues pursy cruse fours burs pours bursa chirus bourse buhrs queuers houris puris varus kouros ceruse currs euros cereus churrs burse muras ursa trues suras torus hydrous sieurs duros duras pareus curse purs sours nurse peruse lours cirrus knurs murrs douras cures virus praus crus aureus feuars ruse cerous rues truss gyrus buras purse gaurs curs guars porous aurous ours furs hours kauris sorus auras lures course mures knaurs cirrous lauras parous nairus purrs tours aures druse xerus dures serous durrs torous suers ferrous ruers chorus yours
guru gaur grue guar guiro gurry kuru