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.
rosiny rosin resiny raisiny resin rusine resign raisin reassign ricin risen reason resawn reseen resewn resown rezone raisonne
raisiny resiny rosiny sin hessian sain fusain basin assign sinh cassina cassino resign sign casein cuisine lysin essoin eosine cession scission session cosine sine raisin eosin mission casini resin reassign passion fission rosin quassin lysine ossein cousin cosign cassine casino rusine sasin seisin design
roes brose drossy prosy pross prose gross crosse cross erose eros brosy bros roose arose rows rousseau rouse rosy rose pros proso prossie dross trois