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.
kolos kilos kohls kolas koels koalas colossi cols gaols cowls calos colas kails kales coils coals glows gloss coles keels kills close cools goals cloys coleus kayles glossa colies glossy coulis quolls coalas kellies collies gallows callous keyless glossae coulees gallous killies coolies callose goalies coalesce coalless colessee coulisse goalless keelless gals guls
bolos cholos solos polos nolos kolos coils koels allows floss haoles hallos phyllos boles flows gallous holloes floosy sloes slows helos lose polls pools aiolis calos fouls bolus bolls lows foils glows cloys cowls mellows ghouls noels viols hilloes oils molls callose voles sallows jellos goals coals haloes cools floes duellos roils polios telos tolas tolls tools pilous wholes olios wools dolls hulloos holes shallows xylose shoals yellows oleos solus villose gloss hols pols milos violas filose bullous fillos lilos gaols hulloas soils aloes holloas hullos jealous follows halloas alloys felloes close helloes loss coles hallows kolas blows hollos molas boils hilloas bowls moles bellows pillows halos quolls villous moolas cols bolas loose colas billows belows hollows fools fellows lolls loos reoils jowls polis fowls filos hillos rolls mallows kilos knolls ploys oles kohls diols joles niellos cellos helios hellos doles zealous soles foals sols fallows howls plows mools noils polys folios holloos halloos halloes owls poles tallows moils gallows hulloes dols callous toils toles mols tolus pilose roles wallows willows cholas chylous silos sheols souls shools yowls
kolo kilo koala koel kohl kola