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.
shily shiel shyly shaly shill shoaly chilly sheila shaley shelly sial shul sheol chili chill shell chiel chile sheal shaul shale shawl shall shool shoal chally chilli shallow
shily hili doily daily roily noily pily gaily gilly illy lily holy hilly chilly chili shiel chiel bialy willy hill hila muhly wily while dilly silly oily riley billy filly bailey phial hail heil shaly chill shill chile shyly