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.
setae seta stoae set settee stay sett cete zeta suet staw seat seed stoa suede seedy sutta satay suety stoai suttee sat sty sit sad sot stew sade said cede sati side sadi suit soot sued soda stey site stow sate
chaetae setae eta tae pieta cheetah vittae chaeta zeta geta beta betta feta fete fouette vitae cete lyttae mete reata retie seta cottae rete stoae guttae tate jete meta chetah