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.
cultch culch clutch clutchy gulch clach glitch klatch cloche cliche glitchy caleche caliche clash guilloche calash coolish goulash
cultch latch zilch mulch milch gulch glitch culch letch lich litchi loch lych belch blotch blotchy filch fletch flitch clach clutch clutchy lech glitchy klatch moloch slatch welch
caul coulee cull cullay cully aculei oculi scull