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.
types topes typps tapes typos tepees taupes topees tops tips tups taps tawpies toupees teepees tapis dupes tipis tepas dopes topis tapas topos tepoys teapoys toepiece daps dips dups
types hypes pes pies pappies coypus spews veepees hippies koppies pipes cowpeas apes wipes napes chippies nappies hoopoes typps japes capes copies sipes yuppies yippies shoppes chappies whoopees pews epees poppies rapes ripes rupees yeps guppies gyps dopes tapes tawpies tepees topes loupes spues opes nappes mopes copes gypsy cowpies buppies hypos jupes kewpies coupes supes gapes hyps peso pehs hopes pees dupes typos lopes peas topees toupees cepes teepees puppies rappees spies peps spaes ropes whoopies taupes cheapies popes shapes yaps weepies yipes yips chapes yups
type typey tape tepee tope topee typo typp typy