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