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.
tracheid torched trashed trachyte trichoid trochoid tracheate trichite
tracheid reechoed trochoid breached searched perched orchid lurched retched roached ruched wretched arched birched reached breeched broached crotched crouched crutched grouched grutched marched parched preached torched trichoid churched
trachea tracheae torch torchy trash trashy troche trochee