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.
shoppe shop shape choppy chappie chippie chop ship chape sheep chippy chuppa chapeau cheapie chuppah
shoppe ope soppy rope poppy hippie nappie pope koppie mope nappe loupe loppy chippie whoopie lope koppa yippie mopey dopey poppa nope topee chappie choppy coupe cope hoppy hoopoe whoopee hope buppie pipe rappee ropey dope tope yippee yuppie