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.
weevil weevily weevilly wavily waeful wifely woeful woefully
evil weevil devil kevil bevel avail kevel gavial coeval coaeval cavil jovial savvily heavily reavail vial vill veil level revel civil devel viol revile wavily vile vail weevily