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.
phyllos ghylls phallus phials fillos felloes follows villous fellows villose fallows ghillies falls fills fells vills floes flows fulls floss filos filose villus folles ghouls villas follis floosy flossy folios fellas filles failles fellahs fellies fillies floosie flossie foliose folious follies valleys volleys
phyllos fellows ghylls follows villose hulloos callous jellos gallows hollos hulloas holloes niellos hillos mallows cellos hilloas xylose hallos tallows helloes willows halloas shallows villous yells halloes fillos felloes mellows halloos bullous fallows billows hullos gallous callose lilos hollows hulloes holloos pillows allows holloas sallows hilloes duellos hallows wallows hellos chylous alloys yellows bellows yills
phyllo ghyll phalli phyla phylae phyle aphylly