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.
deifiers defiers defers differs divers defrays devoirs diverse doffers duffers deforce devours
reifiers defiers deifiers firs kefirs hoofers coffers fears feres heifers fires defers fries givers knifers viers fivers vivers lifers refers puffers fiars rivieres chauffeurs chaufers gofers refries reivers rivers sivers wivers gaffers zaffers offers divers duffers waivers kaffirs chafers fifers quaffers refires gauffers jivers kafirs aivers loafers livers piaffers leviers feoffers bouviers buffers reefers quivers coiffeurs niffers chaffers liviers woofers whiffers wafers doffers differs zaffirs goffers suffers roofers rivieras reoffers fairs affairs chauffers shivers