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.
rialtos rillets reallots realties realities rillettes relets relates rollouts roulettes reloads
rialtos altos alts zealots lotos faults valets vaults halts gelatos gaults malts mulattos palets salts saults maltose chalets