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.
shikar shikari shikaree shikker shicker chukar chickaree shaker chukkar shucker shakier shocker chickory shaggier chakra choker checker chicory chigger chokier chukker checkrow cheekier
shikar cigar siker hiker liker makar mikra piker vicar daiker biker dekare diker duiker uakari chukar chukkar shikari
shake shako shaky sheik sheikh