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.
hurts hurds harts hearts heriots hurdies hearties hards herds hertz hoards hordes hairdos hardass hardies heredes haeredes hayrides
hurts courts yurts crits kurtas grots quirts croutes ferrets jurats verts cartes frits boarts hearts arts korats frats artsy carets burets fortis borts quartos brats barrets karats rets ports virtus nerts shorts tortas cherts worts terrets whorts urds dirts turds trots torts rats orts aortas merits parts tarots gourds darts curtsy reroutes sorts berets curds carats carrots karts grits writs brits grouts rots burds quartes bruits girts frets morts routes farts hurds krauts brutes vertus routs forts ruts fruits airts shirts bruts marts quarts cruets carts certes prats curets surds garrets drats parrots fortes territs nurds pierrots tortes trets trouts derats turrets warts tarts worrits charts harts