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.
patios pachisi patches pachas pashas pashes pishes pshaws peaches pitches poaches pooches pouches
patios ratios fashious cautious otiose yautias