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.
boulles boules bullies bulls bolls boles belles boughless bellies bullace bullous billies ballies bowless balls bells bolas biles blues bolus bales bills buhls boils bowls bolos bless ballsy blueys bluesy blousy blouse boylas belies bailies bellows bilious bialies bailees billows baileys bels bals blaze bliss baals blaws blows blahs balas bails balsa bawls blase belays belows bialis bialys blowsy bylaws
boulles tulles helloes goalless fulls ballies sillies guiles gulleys failles dalles pulleys coalless halloes hulls jellies follies cullies lollies dollies felloes volleys galleys gillies keelless hullos nulls billies muleys soulless chillies sallies woollies wheelless mulls wallies milles tules toolless tailles dellies pules holloes hilloes rilles mailless callees mules ghoulies tallies folles alleys boules quills rules selles sullies dillies kellies caules bullies mallees quolls gulls allies valleys killies tellies filles allees mullas gallies bulls rouilles pulls fellies gullies culls tuilles jollies nellies hulloes cullis belles malleus lulls heelless hollies quells gules collies fillies joules tailless mollies mulleys ghillies mealless rallies sailless soilless dallies dulls coulees wellies bellies willies challies pollees yules les
boulle boll bull boule bulla bullae bully abolla abollae aboulia