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.
tools tolus tolls tolas toles toils toolless toiles toeless dols doolies tils doolees tels toyless doles taels teals teels tules talus tales tells telos teles talls tiles tills tails talas diols dolls tallis tulles doulas tellys tailles tieless tallows tellies doyleys tallies doilies dollies doylies tuilles tailless dals dels
fools cools shools wools mools tools pools cowls fouls bowls floosy reoils knolls roles haoles foals lolls polos molas coles dols holloos cols polys toils viols kolos bolos oils polis sheols cholas wholes tolus dolls solus soils joles foils violas fowls molls diols howls noils kohls hulloos toles goals polls roils bolus aiolis soles voles mols colas koels loos boles pols solos holes jowls quolls kolas bolas bolls moils coils noels tolls moolas loose ghouls poles oles nolos boils halloos souls coals tolas moles gaols owls rolls sols doles hols cholos shoals yowls
tool doolee doolie dooly toil toile tola tole toll tolu atoll stole stool stoolie tootle