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.
blotty blotto blot bloat bloody ballot blighty bailout blet bolt blat belt blite bleat bluet blood baldy built blate balata ballet belady billet blight bolete boleti bullet ballute bullate
blotty clotty plotty lotte lotto blotto floaty jolty calotte culotte slitty slutty zloty
below blooey blooie blow blowy bolo