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.
boson bison bosun bassoon basin bizone
boson son essoin fission foison hosen caisson lesson meson loosen passion reason rosin scission session weason eosin bosun bison mason zoon sown soon sone hyson gossoon liaison bassoon mission poison resown cession season disown chosen
bos bios booboos boobies boas boos booze boozy boss bossy bouse bousy bows bowse boys bozo abos bobs booboisie boobs