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.
pouchy pouch poachy pushy pooch poach patchy peachy pitchy posh push pech pacha patch peach pitch poisha
pouchy duchy touchy reechy nautch beachy beechy cushy botchy bushy bitchy gauche butch fitchy ruche mushy ouch sauch much douche dutch tetchy touch louche cutch gaucho witchy yechy poachy mutch gushy pouch tushy rouche peachy vichy couch heuch vouch hutch patchy pitchy nucha catchy pushy sheuch itchy mucho rushy mouch such leachy chay achy techy teuch touche yuch