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.
stunned staned stoned stound stained stand stannite stunt satinet standee saddened soddened satinette stent stint
dunned tunned stunned denned dinned donned tanned tinned tuned attuned redonned retuned