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.
fusain fascine fission ficin foison
fusain sain sin cession scission resiny rosiny reassign resign paisano raisin paesani paisan eosin cuisine mission diazin ossein casini lysine basin quassin fission hessian cosine essoin cassino eosine cassina session asana assign casino sawn sane cassine sinh casein cosign niacin messan lysin gossan cousin paesan sign sine paesano paisana passion raisiny resawn resin rosin rusine sasin seisin design tisane