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.
pawkier peakier pokier packer peckier pickier pockier piker poker picker pakora pucker pecker pickeer piggery piggier puckery puggier picara picaro pugaree
gawkier pawkier kier leakier quakier beakier geekier ickier hookier hokier pockier hawker jokier reekier rookier suckier duckier wackier whackier chokier yuckier peckier cakier gawker pickier kickier muckier cockier kookier quackier lakier luckier pokier peakier oakier rockier skier dickier tackier waker cheekier shakier yukkier kir