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