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.
pshaws pashas pachas pashes pishes pushes
chaws bashaws pshaws cashaws shaws cushaws pashas chows cashews geishas shews rechews nachas reshows kashas shows datchas sashays dachas fitchews chays chais mochas sheas shays chews shahs gotchas pachas chias chaos chase chowchows
pshaw pash pasha pish posh push pushy