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.
snakier sneakier snacker sneaker snaggier sinker snooker snigger snicker snickery sangar snugger sangaree sinecure snuggery snuggerie sangria zingara zingare zingari zingaro
snakier sneakier chinkier wanker dinkier gennaker panickier finickier finnickier funkier hanker hinkier banker hunkier ranker canker knacker gunkier kinkier lanker lankier punkier snacker sneaker junkier inkier danker tanker wonkier chunkier
snack snake snakey snaky sneak sneaky