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.
knocked nocked knacked necked nicked knockout naked nuked nogged necktie nicad nagged
hocked yocked rocked shocked locked knocked cocked socked nocked pocked mocked docked chocked picked whacked backed recked nicked wricked sicked rooked coked caked locoed hacked mucked rocket wicked wracked kicked yoked rucked hoicked dicked becked jouked howked yacked lucked poked chucked ricked tucked fucked lacked joked socket sucked kecked decked checked soaked ducked cooked pecked licked packed knacked racked necked looked shacked gecked sacked booked quacked hooked pocket ticked jacked docket tacked toked wrecked choked locket shucked hoked bucked yucked