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.
etch each eche echo echoey aecia
aitch batch rotch ratch patch nautch mutch quitch cutch letch bitch botch butch etch fetch watch ditch fitch vetch catch retch pitch notch natch match ketch latch hatch itch hutch hotch hootch hitch dutch wretch witch