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.
babassu babas babes babus bubbas baboos babies baubees bawbees bobs bubs bibs bibbs boobs bubus buboes beebees bobbies boobies booboos boubous bubbies
babassu bass bassi basso bassy rubasse subbass bas