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.
buckets beckets baguets backouts bouquets baguettes bugouts boycotts bigots
beckets buckets tuckets jackets lockets packets pickets pockets rackets rickets rockets sockets dockets tackets tickets wickets keets skeets
bucked bucket backed becked becket