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.
valorous valors valours valorise velours valuers vealers valorize flours fluors floras floors velars veilers fallers velures failures voleries fluoresce flirs filers flairs flares fleers fliers
valorous dolorous chlorous hilarious glorious malarious oloroso pelorus pylorus delirious doloroso tellurous