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.
hawker hacker hiker hocker hokier hooker hookier hegari hogger hugger hickory
hawker gawker cooker beaker necker racker cookery cockier laker beakier mockery hocker joker licker icker bakery packer kickier meeker baker piker quackery geekier rocker hooker knackery poker cakier biker muckier backer gawkier quaker leaker sicker oakier rockier yuckier waker decker whacker whicker docker checker wacker choker chukker shakier taker shikker shucker duckier locker rookier sucker skier pucker dacker picker dickier luckier peckier saker peakier reeker tacker quicker toker wrecker bicker cocker sacker quakier kicker jacker knacker ickier fakery pokier knocker hokier rockery hiker quackier pockier jokier mocker kookier pawkier keir booker nicker raker fakeer faker bucker lakier mucker hookier fucker liker hacker kier leakier ocker siker looker suckier soaker puckery daiker pickier diker wreaker maker seeker pecker reekier tackier lacker tucker pickeer duiker rookery yakker shocker ticker shicker shaker chokier wackier cheekier ducker wicker whackier dicker weaker yukkier
hawk hawkey hawkie hack hackee hackie haik haika haiku hake haku howk khaki dhak