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.
prissily pricily prosily pursily parsley parasail porously parasol perusal presale presell parcel
brassily grassily prissily dressily reassail rosily horsily crassly crossly crusily greasily grossly prosily pursily drowsily
priss prissy paris peris praise press pries prise pross prossie puris uprise