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.
gambirs gambiers gamers cambers gammers gomers cameras combers cumbers gummers camorras cumbrous comers cummers
gambirs mirs bemires amirs ambers mires mbiras lambers members lumbars mimbars ombers sambars tamburs timbres umbras bombers embers mairs lumbers hombres cambers combers cumbers gambiers embars limbers emirs memoirs numbers ombres samburs timbers umbers chambers