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.
solus soleus sols solos slues sulus soils soles souls sels sals soulless soilless sloes seels sauls sylis slaws slews sails salsa sales silos sells sills slows slays seals sluice selahs selles solace sluicy sallies sallows scillas sillies sullies zealous sailless
bolus tolus solus viols nolos blues howls oles polis mols coils solos foals bowls coles blousy poilus gallus ghouls cholos pilaus holes toles pileus cowls clues glues boils bolos boles villus koels jealous ulus shools lulus wools reoils pilus toils dols mools doles delouse slues sulus flus roles polys sheols bolas kolas haoles quolls moles soles polos values flues callous noels moils bolls cols foils folious goals coleus soils villous aiolis voles gaols lousy louis molas moolas owls bullous kohls jowls cools ileus callus louse hols roils fouls coals fools hilus joles rolls violas colas pilous lues fowls jealousy phallus molls malleus oils kolos polls plus lolls noils sols bilious pols knolls souls poles diols blouse dolls talus pools tolas tolls soleus tools gallous wholes cholas zealous chylous shoals pileous yowls
sol slue soil sola sole solei soli solo soul sulu