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.
causey cause case cosey cuisse cues cuss cosy cays casa caws cozey gussy gauze guise cusso cosie gawsy gassy gauzy gauss queys cassia cooeys gawsie goosey gussie queasy cos gas kas
causey mousey use wussy nausea hosey guise touse douse ruse reuse muse chouse gussy goosey mosey cause mouse lousy queys pause mousse fussy hussy nosey fusee fuse busy bousy louse pussy mussy mousy rouse souse tissuey house bouse cosey choosey youse