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.
palmy palm plumy plummy pallium plum plumb plume pileum
balmy qualmy palmy malmy slimy calm realm loamy limy alma alme alum lamby baalim clammy blimy flamy filmy halma elmy kalam malm halm haulmy palm haulm balm plumy gleamy salmi qualm shalom
pal paella pail pale palea paleae pall pallia pally paly pawl peal pial opal spale spall