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.
grutched grouched crutched crouched crotched crushed crotchet crotchety crashed crochet creeshed cruciate
wretched grutched crutched retched crotched crouched tracheid crotchet searched broached perched breeched marched roached ruched breached arched grouched lurched birched parched reechoed preached reached torched ratchet churched