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.
chickaree shikaree chickory chukar shikar shicker chukkar chicory shikari checker checkrow chakra choker chigger chokier chukker shikker shocker shucker cheekier