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.
sheilas shills chelas shiels sheals sheols shells shoeless sials shoelace shuls cholas chiles shoals shauls chilis shawls shales chills shools chalahs chillis chollas challas chilies challahs chillies shallows chalaza
sheilas fellas chelas deils scillas veils villas violas heils belays paellas pilaus pilaws relays reoils ceilis ceils selahs delays queleas las els
sheila sheal shell shelly sheol shiel shill shily