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.
bragger braggier brakier breaker broguery barracker barker broker burker barkier brickier
dragger bragger rigger rugger braggier froggier craggier groggery groggier priggery progger draggier dreggier druggier trigger