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.
savins savines savviness savannas savannahs sevens suaveness siphons safeness saphenas saphenous sphenes syphons
covins savins mayvins ravins levins mavins pavins finis dauphines veins paphians vines mavens givens caffeines divans davens deveins muffins coffins finos hryvnas ovens ovines bovines vinas foins leavens caffeins heavens tiffins fines dovens vans biffins bowfins sevens refines evens livens avians covens avens devons boffins defines avions divines pavans puffins ravens affines ruffians ravines havens savines fins vinos dauphins wovens