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.
frowzier frouzier frowsier furzier frizzier frizer friseur freezer frizzer farcer forcer farceur fiercer foreseer
frowzier brazier breezier frizzier frouzier frowsier furzier crazier crozier grazier drowsier
frowzy frouzy frows frowsy froze