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.
balladry balladeer bladdery balder blader bladder balloter bouldery bolder bowlder blatter boulder bleeder builder billeter bloodier belter bolter
balladry lader blader bouldery zoolatry
ballad ballade balata balled ballet ballot ballute bullate