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.
plateaus plates pluteus palates platies plats pleats plaits pleads platys palliates pelites playdays plotties pollutes palettes pleiades polities pelts plots palladous politesse pallettes poults plaids pilots palets paillettes pleiads pullets pellets piolets pelotas pallets ploidies poultice payloads pullouts palletise palletize pelletise pelletize plods plotz
plateaus luteous galateas gluteus pluteus
plate plateau plat palate plait platy pleat plutei splat