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.
shaky shake shack shako shacko shaggy shag shook sheik shock choky shuck cheeky chokey chucky sheikh shog
shaky cakey shako shack whacky wacky peaky oaky leaky laky quaky quacky gawky beaky jacky fakey hawk haku hake haik hack pawky tacky whack choky shake caky
sha shah shaugh shaw shay shea pshaw