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.
kousso kusso koss cusso kos kois coss kues koas cuss kiss kissy quass kazoo guess gauss gussy cuisse gussie quassia cos gos kas kis
cusso kousso kusso wuss pussy mussy mousse basso buss fuss fussy hussy gesso cuss lasso mosso gauss muss guess puss gussy suss quass wussy