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.
fallows fellows follows flows falls fillos failles felloes fails floss flaws fills flews filos floes fowls fells fulls false foals falsie flossy folles filose folios filles fellas follis floosy phallus villose follies floosie foliose fallacy valleys phyllos fillies flossie fellies folious villous fellahs flus fils vials flees files fouls flays fleas vills fuels feels vails vales flues fools valse veals flies fleys foils values floozy foleys villus villas ghylls valise phials feeless floozie volleys vowless
allows hollows gallows fallows willows sallows tallows fellows bellows yellows mallows pillows mellows hallows wallows follows shallows billows lows slows halloes blows halloos phyllos hilloes flows villous belows fillos helloes alloys lowse hullos gallous niellos callose hellos lilos plows hulloes holloos hallos jellos villose hollos hilloas hillos halloas duellos holloas hulloas callous hulloos felloes glows bullous holloes cellos blowsy
fallow fall faille felloe fellow fillo follow