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.
hirudin hordein harden harridan hearten
hirudin rutin verdin hordein gradin guardian nardine ordain pardine reordain sardine sordine sordini sordino sourdine turdine