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.
glitchy glitch clutchy gulch cliche klatch cultch clutch caliche guilloche clach culch galosh golosh cloche caleche coolish galoshe goloshe goulash
glitchy litchi blotchy flitch clutchy glitch