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.
plumbed plumed palmed plumate plummet pelmet palmate palmette palmetto playmate
plumbed lambed limbed blumed flambeed flumed volumed illumed climbed culmed plumed relumed slummed