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.
yechy yech yuch
beechy techy yechy reechy tech teuch etch echo itchy vichy ketch each vetch witchy fitchy meshy reach poachy eche botchy wretch teach fetch leach yech peach leachy leech catchy chay reecho bitchy beech beachy achy pech beach lech pitchy letch patchy peachy retch duchy tetchy touchy sheuch heuch pouchy