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.
piously pusley pussly paisley pussley pausal posole passel pizzle pozole psylla puzzle
piously busily housel cosily loosely lousily mousily nosily ousel pusley pussly rosily tousle sly