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.
wifeys wifes waifs wives waives waveys wavies whiffs waffies waffs waves woofs weaves weighs whoofs wheyface
wifeys fes piaffes ofays coiffes gaffes jiffies cafes fifes feoffees biffies bouffes toffies taffies waveys defies baffies fays jefes coffees reifies foys ruffes fees roofies pouffes peaveys coveys knifes fehs safes deifies fess feus foes waffies toffees wifes chafes