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.
racket rackety rocket racked wracked rickety react raked ricked rucked recked rocked wricked wreaked wrecked recto recut recti ryked rooked ragged recode ragout reeked rugate roquet recoat raggedy regatta requite hyracoid roquette
bucket packet pocket ticket docket becket rocket picket locket wicket tacket racket jacket tucket socket kecked wicked dicked mucked hacked cocked gecked pecked rocked racked docked keto ducked nicked checked bucked wricked keet rackety jacked tucked sucked decked mocked shacked pocked shucked backed yocked skeet chucked recked knacked wracked knocked lucked picked hocked kicked fucked lacked hoicked ricked necked rickety packed ticked chocked rucked wrecked sicked socked licked becked locked nocked quacked sacked shocked whacked yacked tacked yucked
rack rake drake cracky rakee raki raku reck rick rickey rock rocky ruck wrack arak brake braky crack crake track