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.
gleba glebae glebe galabia glib glob globe globby galabieh club
gleba alba balboa bilboa bleb jellaba glebae glebe pleb plebe celeb
gale galea galeae glee gley glue gluey aglee agley ogle