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.
middies muddies midis mids middays mitis moieties maids modes mites medias medius mods muds meds mads motes meeds metes mitts mates meads mauds meats modus mutes metis moods meets mottes mattes mateys meatus medusa maydays meadows mediacy medusae metisse mottoes
biddies teddies middies cuddies giddies caddies fuddies toddies daddies noddies widdies shoddies waddies muddies buddies eddies baddies soddies laddies kiddies neddies paddies dies caddis foodies gaddis didies bodies hoodies howdies eddoes rowdies toadies readies wadies goodies woodies nudies ladies caddice boodies kiddoes bawdies dudes goddess diets doodies todies tidies gaudies dowdies roadies beedies adieus dites dis