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.
type typey typo typy tape tope typp taupe topee tepee toupee teepee tawpie tap tup tip top tapa dope tepa topo tipi dupe topi dopey tepoy tippy topoi