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.
laich lich latch leach lichi loach litchi lichee leachy lych loch lash lech leash leech letch lochia louche lychee lush
laich quaich ich bach aitch achy gouache coach itch beach mache loach lich leach cache match nacho catch niche patch peachy poach ratch rich sauch dacha tach teach which witch batch beachy each latch watch seiche ditch reach roach pitch poachy pacha peach miche natch vichy tache macho wich mach fitch lichi fichu leachy quiche fiche bitch quitch ache hitch hatch chichi