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.
renew rein rune wren ranee reign rouen ran rin run rain rani roan ruin
renew new sheeney weenie dene sinew seine penne nene leone hygiene genie gene venue venae eyne enow benne bene anew knew scene sene sinewy diene wienie sheenie
ree bree free gree pree dree tree