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.
shape chape shoppe chap chapeau chappie cheapie ship shop cheap sheep cheapo chippie chip chop
chape shape ape hap tape cheapie nape chap whaup whap taupe rape hype gape cape jape hope heap cheap nappe
sha shah shaugh shaw shay shea pshaw