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.
snugly singly snuggle single snakily sniggle sunglow sneakily sonically scenically cingula sanicle scenical
snugly kingly wooingly jangly jingly jungly cooingly gangly niggly longly langley wrongly singly dangly tangly tingly uniquely shingly
snug sang sanga sing snag snaggy snog snuck song sung