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.
apprise appraise appraisee apprize aperies aporias appears apyrase apers apiaries apres
prise uprise apprise reprise sparse prese capris prase reprice leprose caprice apprize parse peris perse priss pries vaporise prize prose puris purse appraise price paris upraise reappraise praise uprose