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.
blew blue bole bale blow bile blaw blae blowy belle bylaw bluey boule below belie billie bailie bellow boulle bullae blooey bailee blooie billow bailey bel bal billowy bowl bawl buhl bill bail blah bolo bola bell boll boil bull ball baal bally belay belly biali bialy billy boyla bulla bully