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.
dire dare dore dere dure dree drew tire diary dairy deair hydrae durrie dearie dry dor hydriae tiro dear tree tier draw true dray dory tore dura tare dour duro deer dorr tyre door doer trey durr doughier tarre deray derry doura dowry durra deary hydra hydro
fire hire ire quire lire mire moire cire sire zaire dire tire wire shire re