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.
korun koruna koruny kirn kern corn karn cornu kroon corny krona krone kerne corona cornea cornua krooni coreign coronae carn curn gran grin
korun run shorn worn sorn prune porno mourn morn loran koruna corny cornu corn horny horn bourn bruin boron borne born rune ruin rouen koruny lorn moron porn porny rerun torn shoran yourn
kor kora korai kore kouroi kuru