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.
galleta gallet gullet galled callet galatea galliot galette galloot gallate galeate gallied gleet gault goaled called collet gulled galoot cullet galiot gaoled gleety quillet gullied gled glut glade gleed cleat gloat culet guilt glede glued glide glout glute culled killed glutei colead coaled guiled guilty collate collide collied collude cullied killdee quailed quality quelled quilled calotte
galleta gullet wallet rillet pellet mullet muleta millet mallet quillet gallet ballet cullet collet callet fillet bullet billet pallet pullet sallet willet let
galley gale gall callee galea galeae gally gulley gal