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.
cheerly cheerily sheerly charily charley chorally churl chiral choral charlie choreal chorial shrilly shorl shrill chorale
cheerly sheerly queerly leerily cheerily dearly pearly nearly merely freely verily fierily ferly eerily early aerily yearly
cheer cheerio cheero cheery cherry sheer ocher ochery