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.
poaches peaches patches pooches pouches pachas pashes pachisi pitches pechs pashas pishes pushes patios pshaws
baches caches aches maches reaches naches loaches roaches teaches taches peaches poaches coaches beaches leaches laches gouaches fetches letches mouches wyches quaiches cooches bouchees butches fiches itches hitches boches hoochies mooches matches quashes pitches vetches fitches eches ratches patches leches lashes pashes laichs rachis retches wiches washes techies tachs douches deashes dachas sauchs wretches rouches machos duchies hotches rechews liches pachas pooches botches notches machs mutches niches miches nachos catches muches chews fashes ketches cashes gashes rashes bitches hutches leeches hatches couches aitches quiches lichees hashes bashes ashes fitchews cutches quitches gnashes hootches quaichs chess vouches nachas echoes beeches reechoes etches nautches ouches nitchies vouchees leashes latches pouches vichies mashes lychees riches batches rotches ruches sashes seiches dashes ditches duchess lyches hooches touches watches witches
poachy poach pacha patch patchy peach peachy pooch pouch pouchy apache epoch