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.
baffle beflea boffola buffalo befall befell befool befoul beefalo beefily biofuel
baffle raffle piffle souffle muffle duffle shuffle waffle ruffle coffle riffle whiffle refile floe offal flee beflea duffel defile deflea flue rifle file fley flea reflew waffly flew ruffly
baff baffy biff biffy boff boffo buff buffi buffo buffy