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.
creatin creatine cretin gratin cortin craton gratine curtain keratin carotin greaten cortina gratinee cretonne carrotin gradin croton carton cartoon crouton gradine carotene cartoony cowritten cardon cordon garden cardoon grutten quartan
creatin ratine retain retina retine creatine cretin gratin gratine greaten keratin martin ceratin
create carat carate caret crate cruet curate curet curette great ocreate