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.
boudoirs budders booteries biders biters butters boaters bitters bettors bidders bedders beaders baiters bawdries buttress butyrous butteries
boudoirs dors tidiers doers doors dorrs dorsa adores fedoras moidores midairs nadirs odors odours sautoires sautoirs sudors chadors