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.
raws ras rais rows rase rays rias raias resaw raise wrasse res roes razz racy rise race ruse reis rees raze rosy rose rues razee resay resee resew resow reuse roose roues rouse wries
vaws saws shaws chaws waws taws daws raws haws paws gnaws maws laws caws jaws yaws as