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.
cloche cliche caleche caliche clach culch guilloche cultch clutch galoshe clutchy goloshe clash gulch calash galosh glitch golosh klatch coolish glitchy
cloche guilloche lichee loach loch louche lychee blotch fleche caleche caliche cliche galoshe goloshe moloch slouch
calo cloy cockily cockle local locale locally locule loculi