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.
ukase ukes
ukase kas case koas keas kays kaes kaas megasse cause okays sikas skuas bagasse chukkas shikseh zaikais because hookas jackass kakas quokkas ligase okas pikas skas sukkahs takas tokays hookahs tikkas wekas shikse showcase