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.
agate acuate acute aggada agouti agouty act aggadah acta
agate jugate gate rugate togate negate ligate legate gat coatee togaed locate fugato vacate skate cate nougat goatee legatee begat hogtie equate zygote legato quate gait liquate coequate goat gaed acuate