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.
ryke rake rakee rekey rickey rookie rec reg rick raku rook reek reck raki rack ruck rock raggy reeky rocky rogue rooky roque rugae wrack wreak wreck wrick