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.
arched airshed airshot
reached searched retched marched crutched lurched crouched grouched broached crotched wretched churched perched breeched ruched breached torched preached arched parched grutched birched roached crushed cherished ratchet tracheid rachet creeshed crochet brachet nourished reechoed orchid rochet perished rushed airshed crashed reshoed brushed crotchet trashed freshed