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.
teepees tepees topees toupees toepiece tepas types topes tapes deeps taupes tepoys teapoys tawpies tops tips tups taps dupes tapas tapis tipis tipsy topis topos dopes typos typps depose
epees veepees teepees tepees pees peeps rappees rupees cepes topees toupees weepies whoopees pes