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.
fellows felloes fallows follows flows fells fillos fellas fellahs fellies floes fulls fuels falls filos fills floss feels fowls flaws flews floosy flossy filose follis folios folles filles folious villose phyllos fillies feeless follies floosie flossie failles villous flus fils veals foils fools fleas flays vills files flees fails veils fleys foals flies flues fouls ghylls villas veloce foleys villus floozy fallacy floozie phallus valleys 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
felloe fellow fell fallow fella fellah felly fillo follow