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.
dinitro daintier tinter denture donator daunter denature dander tantra tinder tenter dandier daunder denuder tantara taunter tindery
dinitro nitro niter nitre intro genitor janitor monitor montero reuniter santero uniter