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.
waddies wadies widdies wadis wades wads woodies woads wites waits wides whites whiteys whities wets wits weds wats weeds whits weets whets whids watts whats woods wheats widows woodsy whidahs whydahs
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