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.
chukker chukkar chukar choker chequer checker shucker chokier shikker chugger cheekier chakra shaker chigger shakier shicker shocker checkrow chickory chickaree shikar chicory shikari
chukker bucker fucker quaker mucker pucker sucker ducker duiker tucker chukkar shikker shucker yakker yukkier