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.
stunt stint stent stound satinet stunned stannite stand satinette staned stoned stained standee
stunt dunt whatnot natant taunt tent tint attent latent mutant daunt nutant patent potent retint rotund stent stint detent whodunit
stun stane steno stone stoney stony