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.
gala galea galah gal galeae gall goal gale gaol coala calla gayly koala gaily gally qualia goalie galley gul claw gull kola clay coal call cola gley kale glow glue glee caul glia calo kail coaly gluey golly guile gully quail quale
ala coala gala koala nala tala la al