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.
galleria gallery galere gloria gaoler caller collyria gluer culler killer coaler galore gluier calorie collier coalier queller colliery glare glary clear glory gular glair calory coiler collar cooler glaire glairy
galleria filaria velaria helleri collyria gloria malaria peloria pleura solaria deliria talaria cholera
galley gale gall callee galea galeae gally gulley gal