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.
tiptoe tippytoe tipped tippet dipt taped toped typed dipody dipped tapeta tapped tappet teapot topped tupped
tiptoe hypoed pate poet epode capote pupate repute sapote sopite spate spite spode depute tippytoe
tip tipi tippy stipe tittup tittuppy