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.
hugest hedgiest
egest hugest sagest gest digest hedgiest dodgiest hygieist sedgiest majesty jest legist geest geste gist logiest ledgiest hygeist edgiest podgiest egesta ridgiest cagiest pudgiest sagiest ageist agist wedgiest