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.
palletise palletize pelletise pallets palets pallettes pelletize pullets pellets paillettes palettes pleats palliates platies piolets pleiads palates poultice pleiades pollutes plotties pullouts polities plats plots pelts palladous politesse plaits plates poults plaids pleads pilots platys pelites pluteus payloads plateaus ploidies plods plotz
palletise pelletise ileitis multiuse palletize pelletize lets
pallette pallet palet paillette paleate palette palled pellet pullet spalled