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.
pallium palm plum palmy plumb plume plumy pileum plummy
allium gallium pallium folium vellum helium ilium illume kalium milium millime cilium telium chillum lum
pallia pall paella pally spall pal