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.
purlieus purls parles proles parlous paroles parleys parolees pyrroles peerless perilous pyrolize pearls perils parols prowls prills parlays parrels pyrolas parrals pyrrols paralyse paralyze payrolls perillas pyrolyze
purlieus rallies relies rouleaus brollies ferlies hourlies hurlies girlies trollies whirlies charlies yearlies