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.
stand staned stained standee stoned stound stunned saddened stannite stent stint stunt satinet soddened satinette
stand dandy deaned tend attend coattend mutant natant nutant rotund staned deodand
stane stain steno stone stoney stony stun