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.
bill billy billow billie bull ball boil bail boll bell bile billowy belle bally bully belly bulla biali bialy bailey boulle bailee bullae bailie bellow bel bal bola bawl blow buhl blue bowl bolo blah bole blae blaw blew bale baal belay belie below blowy bluey boule boyla bylaw
bill kill shill will dill vill hill ill gill jill fill maill quill mill nill pill rill sill zill till chill yill