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.
foin fin fon fine fohn fino fain finny feign foehn fen fun fan vino vina fawn vein fane phon faun fano vine vain viny faena fanny fauna fawny fenny funny phone phono phony veiny
foin join coin quoin loin in on