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.
quarreler quarreller curler curlier caroler crueler grueler caroller crueller grueller kruller growler coruler crawler cruller griller crawlier grillery growlier
quarreler realer reeler relier crueler grueler quarreller