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.
davens dovens deveins deafens divans devons defines divines defense daphnes daphnias dauphins deafness diaphones daffiness dauphines diaphanous diaphonies defence defiance deviance deviancy divinise divinize toughens
avens livens davens sevens ravens heavens givens wovens dovens ovens covens mavens leavens evens havens mayvins savins fens deafens faenas sphenes hyphens veenas deveins vans foehns toughens divans pavans covins levins hryvnas mavins pavins caffeins offense veins defense ravins saphenas novenas venus devons roughens