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.
cord cored corody card crud cred curd corrida corrody corrode corrade court cured curdy crowd crude caird creed gourd cared cried gored curred gourde cruddy caried cardia crowdy cardio carried curried cowrite cowrote crowdie cardiae grad curt cart crit grid carat guard grody gride greed grade curet garda cruet credo crate carte caret korat
fiord ford cord lord sord word chord