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.
koruna korun koruny krona cornua corona cornea coronae karn corn kern kirn krone kroon corny kerne cornu grana carina crania krooni carinae coreign guarana
koruna run rerun prune marina koruny guarana jarina korun grana corona cornua cornea carina varna ruin frena ruana farina bruin arena rune hernia krona pirana purana trona
kor kora korai kore kouroi kuru