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.
chalk chalky
chalk alky balk balky baulk holk hulk calk caulk talk talky taluk walk whelk chalky
chalah challa challah challie chally chaleh cholla shallow chola shaley chill chyle chili cholo chilli chela chilly shale chile shall chelae shaly