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.
rockrose rockers rockeries rackers recross recourse wreckers rookeries rakers recurs rigors reekers rigours wreakers recarries rogueries
rockrose carouse crosse crouse grouse agarose lacrosse necrose scariose squarrose sucrose checkrows
rocker rockery rockier crockery