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.
ferrate ferrite ferret frat ferrety ferried forte forrit verite ferity furred feared variate phorate vert fort fart frit fret gheraoed farad fraud freed fritt fruit forty vertu fretty fruity veered verity faraday
ferrate cirrate narrate serrate rate hydrate deaerate irate seriate phorate gyrate cerate pirate errata garrote create corrade carate prate laureate aerate orate derate ferrite lyrate muriate variate curate grate crate aurate aureate berate borate karate urate rat