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.
raisiny raisin resiny rosiny ricin rosin risen resin reassign raisonne reason resign rusine resawn reseen resewn resown
raisiny cuisine raisin resiny rosiny seisin sin
rais raias raise braise fraise praise ras