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.
fugally fugal vagally focally fuggily fugle faucal vocally foggily fecal vagal focal facula faecal feckly fecula fickly faculae feculae vaguely
gally fugally legally regally vagally gall vocally squally galley focally gayly gully laically caecally begall gaily coequally equally locally cecally golly ducally gal