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.
dirtily tartily dartle tartly tardily tiredly tortile tritely tortilla dreidl trotyl turtle dreidel
heartily artily dirtily tartily curtail wordily portly torridly courtly fruitily luridly quartile grittily curtly prettily fertile pertly hardily peartly tardily aridly partly tartly horridly tortile ruttily shortly