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.
tiredly treadle treddle tritely torridly dreidl tartly toroidally dirtily dreidel tardily tartily toroidal trotyl turtle tortile
redly tiredly worriedly weirdly reedily tardily aridly buirdly variedly hardily hardly credal horridly hurriedly greedily lairdly lordly luridly serriedly dreidl torridly wordily shrewdly
tired tared teredo tiered tirade tread treed tried trued tyred