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.
caky cakey cake coky gawky quaky cooky cocky kicky quacky cookey coke cook cock gawk cuke caca coca kaki guck kaka keck kick cacao caeca cocoa gooky kaiak kooky quack quake quick
beaky caky quaky laky leaky oaky peaky shaky