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.
atrial
atrial trial tutorial notarial retrial material petrale trail litoral dural drily federal nadiral drail mitral retral tearily drill trawl ruderal sidereal sudoral dietarily triol drawl guttural nitril bedrail lateral futural vitriol nitrile neutral literal redrill laetrile materiel peytral natural trill littoral butyral derail citral sterile sutural tawdrily waterily