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.
milles mills miles mailless mailes maills mils milieus mulleys malleus mollies mallees milos moles mails mules mulls males molls mells moils malls mealless melees molies miauls mullas muleys mooleys mellows muhlies mealies mollahs mullahs mallows mels mols mauls mools molas meals mewls malice moolas malaise moolahs
boulles rilles dalles folles tailles failles tulles tuilles milles filles rouilles belles selles les quills felloes leas bowless jawless ills phallus haloes bales ballsy hillos files lies boughless bailies values boles rolls boules kayles rales coulees kills allies clues bills hills flues mullas flies rills lees joyless ells colies calls mailes culls gelees ollas deles moles kales mulls riles gleys villus biles awless vales muleys flees molls belies hells blues jells galls galeas leys flews sloes haoles coalless allees ileus niellos hulls hollas calesa sells holies coleus leis quells peles halloes gallus halls tills wallas wellies dailies pulls tallis poles duellos tules floes pileus plies doyleys doilies cullis wholes wales muhlies wheelless whales woolies yills shoeless shells chillies chiles challies chalehs willies pollees chills chyles tales walls dollies toyless scillas teles tells roles fellas rules miles tolls glues lulls sales kellies gillies sullies keyless soleus jills oleos keelless less bolls hueless hales soilless ballies sills pleas tieless pales goalies ghoulies callus toiles nills molies gules dillies malleus jollies fills goalless heelless quolls pulleys polls lilies alls coles bullies fulls falls piles fillies cullies callees hollies alleys hellos wyles killies nulls collies dewless dills joles valleys malls mealless cells mulleys cellos fleys tailless volleys bailees hilloes doolees knells baileys jellies queleas maills males joules viewless holloes galleys bialies bellies ales lollies knolls fellies gills ghylls lues bulls gullies hollos aloes foleys vills fells bless fleas bells mailless vowless rallies voles jellos phyllos pules follis gulls hulloes billies villas ghillies nellies callas mealies melees guiles glees mills helloes lawless dells plews holes lalls slues hullos gales mollies palls follies oles mallees dellies tallies mules dallies caules clews fillos hallos gallies voiles paellas sillies rayless reales polies gulleys poleis sailless feeless slews toeless coolies hoyles zills soles wheelies pills walies wiles doylies dulls tellies dolls dales lolls balls tellys sallies tiles mells doles wells wallies soulless relies whiles mooleys toolless toles doolies wayless talls shales chollas wills woollies challas challis chilies chillis shills yells yules
mill mille mil milo smile milieu mullah milia mull mile mollie mellow moll mell mallei mallow mallee mall maill maile mail moil mollah molly mulla mulley smiley