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.
koels kohls keels kolos kolas koalas cols keyless kellies keelless kales coles coils colas gaols coals kills kilos goals cools kails cowls coleus kayles quolls colies coalas coulis quells collies killies queleas coolies coulees goalies colossi coalesce coalless colessee goalless gals guls
noels koels els haloes foals haoles bells helos peals bels jells coils hulloes cools keels looies meals knells halloes kolos fells jowls mools fools holes mels gaols fowls feels nolos aloes quolls bolas reals looeys moles coles polos viols rolls hols sells kohls teles dolls teals toles tolus sols wheals telos wholes roils chelas cholas diols sheals sheols shoals yells deals weals cells seals mols oles moils soles duels deles helloes polis reoils heels sloes peles dells souls aiolis polys toils veils voles veals tolas bolus bowls doles zeals hells delis sels shells bolos chiels solos cels pols heals reels owls cols moolas roles lolls ghouls molas heils loess felloes poles fuels gels kolas tells quells ceils ells cowls violas molls holloes boles shools wheels riels joles foils fouls else eels mewls taels colas mells boils bolls kneels noils coals goals tools floes hilloes tolls soils teels dols dels deils solus seels wools knolls shiels pools polls peels oils howls tels wells cholos yowls
koel keel kelly koala kohl kola kolo akela skell