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.
challah challa chalah chaleh chally cholla challie chill chola shall chela chilli chilly chelae shallow chiel shoal shell sheal shawl shaul shill shale shaly cholo chili chile chyle shaley sheila shelly shoaly
hallah wallah challah allay fellah halloa calla galah mollah chalah nullah paella pallia zillah walla challa mullah ala all