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.
jaguars jagras jaggaries jaggers jackaroos jaggeries jaggheries jackers jiggers joggers jackeroos jokers
guars jaguars gars ligures sugars leaguers soucars cougars saguaros hegaris cigars voguers muggurs vigours eggars figures beggars augurs agars gurus gaurs muggars rigours saggars seggars squares chukars