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.
galenas glens galleons galleins gleans gallons glans galloons glueyness gluons cleans callans kaolins cleanse kalians kaolines gluiness guylines colleens clans kilns cleanness clons callowness clines clowns clones colons clonus glance colins collins colones colonus
melenas galenas lens woolens cleans xylenes villeins salinas colleens pollens baleens pleons aliens mullens galleins lunas flense lenos liens lenis lenes leans galleons glens lense gleans mulleins oleins poleyns rellenos silenus ulnas woollens
galena glen gallein galleon glean