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.
pacha patch peach poach pasha patchy peachy poachy pash pech pshaw pitch pouch pooch pitchy poisha pouchy pish posh push
pacha dacha hatch catch each beachy facia mocha nuchae macho natch chai pasha mach loach poach leach ratch laich roach gotcha beach bach tach teach peach nucha cache quaich kasha chao chaw chay coach ache achy chia nacho match batch gouache patch mache peachy lochia poachy leachy reach latch sauch datcha tache watch