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.
ball bally bal bull bawl bell bill boll bail baal bale belle billy bully belly biali bulla bialy bailey bailie billie boulle billow bailee bellow bullae bel billowy blaw blah buhl bola bile boil bole blae bowl bolo blow blue blew belay belie below blowy bluey boule boyla bylaw
all ball fall hall call gall lall mall pall sall tall wall shall al