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.
shoes shes sheas shows shies shoos shews sheughs chess shays shahs chows chose shaws cheesy cheese chowse choose choosy chouse choice wyches choosey choughs shaughs chez
hoes shoes hes hos oes shews roes chess joes moues whose whews toeas hews zoeas shes hooeys woes cooees hoys looeys hows goes hose chews shows chose hies voes cooeys joeys does chows haes chaos ghees hues wheys whoso hehs sheas toes shies foes roues poesy noes looies loess shoos wyches
shoe she shea sheugh shew shoo show showy sheesh sheuch