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.
pelletize palletize pelletise palletise pellets pallettes paillettes pullets pallets platies polities poultice palettes pleiades plotties pelts plotz palets pleats pelites pelotas piolets pleiads pollutes pullouts palliates plats plots
palletize pelletize palletise pelletise
pellet pallet pallette pullet spelled pelt