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.
pacer pacier passer pauser piecer poser pisser poiser poseur pessary pussier pizzeria
facer pacer macer racer lacer juicier pacier cero baser raser lacier hazer ricer dicer leaser deicer dicier teaser chicer saucier douceur icier viscera gazer voicer maser cicero laser razer nicer saucer juicer piecer mazer racier cere chaser choicer
pace pacey pacy pase paseo peace pice puce apace space spacey spacy spaes