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.
characid chariest charriest christy chorused christie cheeriest chorussed shoreside
hyperacid peracid hydracid characid raced braced graced terraced traced triacid
charas chairs chares charros charrs chars