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.
taupe tape tup tap toupee tawpie tapa type dupe tope topee tepee typey teepee teapoy tip top dup dap dope tepa tipi topi topo typo typp typy
taupe ape shape chape toupee jaup jupe cape coupe gape loupe nappe jape pupae rape rupee supe dupe tape nape whaup cheapie yaup