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.
beflea baffle befall befell befool befoul beefalo beefily boffola bevel biofuel buffalo
beflea flea deflea whiffle duffle rifle flay defile ruffle riffle refile piffle feal fila file flaw flee flew floe flue baffle boffola coffle muffle raffle fley reflew waffle souffle shuffle