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.
beech beechy beach beachy bach boche botch bitch batch butch bitchy botchy beauish bouchee bash bosh bush
beech leech yech sheesh techy teach retch reecho pech beach beechy each eche echo etch vetch fetch heuch ketch leach lech letch peach reach reechy wretch tech teuch sheuch yechy