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.
duels dels duellos delis dells deils dulse deals deles duals dulls doulas dulias delays tels dals dewless delouse dols dellies taels doles dolls tules dahls tells dials teals teles teels dales telos diols dills dalasi tulles dalles tellys dahlias dailies doolies toeless dollies tieless doylies tellies dillies doyleys dallies dualize doolees tuilles doilies tils
fuels duels els bluesy nulls bels meals lulus veals values hauls bells blueys heels rules hells lues keels gulls miauls buhls seels hulas quells caules louies cauls blues mels knells coulis pulse peels tels yells shiels deils shells shauls souls chelas wheals sels weals ulus pulls tells glues cells taels teels reels dulls mulls dels duals sauls delis gels zeals ghouls pules jouals peles mules fouls sells joules cels teles mewls dulse wells heals tules sheols jells fulls koels else helos pulis clues heils bulls mauls caulis noels veils slues flues eels chiels feels hulls culls mells lulls reals kneels ceils guls seals peals fells ells riels shuls sulus deals gules deles dells puls doulas boules teals telos wauls wheels sheals yules
duel duello duelli del doula dully diel dulia dually dual dele delly deli delay deil deal dull dell duly