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.
piso pis peso pois pies piss pias psoai pious paisa peise paseo paise psoae poise pes pus pas psi pehs hyps pass poos puss pase pews pees posy paws pice pows pays peas pose piece poohs poesy pizza posse pease pause passe hypos hypes pussy