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.
hypnic panic hyping pianic pionic hypoing panicky pinkie punkie
hypnic conic hyenic tunica tonic xenic snick cynic pionic panic muonic manioc manic maniac quinic kaonic nick bionic genic ionic vinic phonic hyphenic aeonic hygienic pianic runic scenic sonic tannic tunic hyaenic yonic