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.
cullis cullies culls caulis coulis gullies collies cullays gulls calls cauls quillais coulisse colies quillaias caules quolls callas quells quills callus callous coolies callees gallies killies callose gulleys coulees kellies guls cols galliass coalless clues kills galls cowls cloys gules class cools claws glias clays colas clews coils close coals calos coles coleus gallus coalas calesa clause classy quails guiles queleas gallows goalies colossi galleys gallous coalesce colessee galleass goalless keelless
cullis challis follis tallis chillis lis ills quillais falls delis knells phyllos callus filles bills colies rilles ghillies molies coolies flies ballsy mealies alls cells fills halls balls callas hollies belles belies pills dills hellos lolls ballies jellos bailies cullies maills fellies kellies sills holies villus culls dahlias dollies doylies sells caulis valise lilies niellos tallies dells tells tills duellos palls tuilles dalles wellies wheelies wills nellies woollies challies galls chilies polls chillies kills chills shells yells talls mullas sylis molls bolls jills realise villas pulls ceilis folles bells rolls wallies milles walies doolies fillos quolls scillas poleis gullies hullos glias gills olios paellas bulls nills collies gillies boulles fells alias goalies jellies knolls sullies bialies fillies lollies hallos lalls jells mills hollas gallies bialis ghylls gallus ells pilis phallus lies lulls hulls failles bellies vills hills mollies follies killies fulls leis plies quells ghoulies malls coulis cellos billies bliss jollies allies folios dulls hells polios polis hollos ollas dallies dulias rallies sillies relies hillos tolls tellys rouilles nulls helios quills dellies fellas gulls sallies aiolis muhlies mulls aaliis calls doilies walls polies bullies dillies tellies dailies mells dolls tulles wallas wells zills tailles willies woolies challas rills chilis pulis palais chollas shills selles yills
cull cully cullay coulee oculi aculei gully gulley gull collie colly caul callow callee calla call scull