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.
phyllo phyla ghyll phyle phalli phylae fillo phial fallow felloe fellow follow hyphal ghillie
phyllo fellow hulloo hullo hollo holloo alloy bellow hillo fallow billow felloe duello cello wallow niello shallow mallow yellow callow allow follow halloa hulloa hollow hilloa holloa hallow halloo hello hallo ghyll fillo sallow pillow tallow mellow willow lilo yell jello yill