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.
clears claros cullers collars coalers coilers clerisy claries callers claroes coolers colliers glairs gluers glares clours colors collieries colures galeres gaolers colours killers quellers calories couloirs galleries gallerias galores glaires glorias glories calorize colorize glorious
lears clears blears coalers howlers heelers halers fellers gluers boleros blares fallers malars flares claros fliers glairs liers molars beliers milliers leers galeres coolers fillers gillers quellers vealers fullers collars velars jolliers oilers balers hauliers railers polars pollers shellers yellowwares choleras woolers duelers willers whalers wailers dealers talars sillers toilers tilers sailers talliers tollers tailers mylars hollers diallers knollers lullers pulers ballers sealers pillars mewlers ceilers hellers reelers rollers billers millers bawlers fuelers cholers tellers liars tolars dollars haulers gaolers tailleurs lares dalliers ralliers glares rulers pliers salliers walers cullers maulers helleris hailers milliares feelers lairs fowlers healers poolers valuers fuellers flairs lars coilers killers willowwares veilers lehrs bowlers nailers colliers filers lollers laris boilers mullers hillers hollowwares hullers jailers callers fleers bailers mailers sellers yellers dialers milers wheelers toolers tillers talers duellers chillers moilers cellars reliers pullers polers peelers kneelers yowlers
clear claro clary eclair sclera sclerae