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.
dulias doulas dahlias dulse delis dulls duals duels dials delays dalasi doilies duellos doylies dellies dialyse dillies dualize dallies doolies dailies dollies dals dels dols dolls doles dales talas tules dells dahls tolas dills diols deals dolci deils deles tulles dalles tallis dialyze doolees doyleys tallies tellies tuilles delouse dewless
alias glias dahlias dulias lis las fellahs bialis bullies ghoulies bellies aaliis holies follis colies hollies claws leas hulas laws plies galeas billies hylas allays balas plays kellies fleas allies sylis bialies coalas mealies flaws queleas jollies bliss poleis doulas pleas rials sillies nalas nellies ceilis cullies blase moolahs paellas chalahs walies wallas waylays dalasi relies wheelies delays dollies challas olios dillies challis pulis chilies chillies cholas pilis sheilas tellies woolies galliass dellies slays tallies glass aiolis polios realise hollas bolas mollahs lass scillas mullas molies cullays belays jellies koalas lays pilaus alas hilloas quillaias lollies kolas clays ghillies fellies flies polies fillies holloas hallahs callas mullahs bylaws goalies doylies helios gallies coulis muhlies killies ballies fellas halloas violas follies leis flays bailies vials moolas phials galahs zillahs doolies belies class lilies valise quillais galas palais villas folios pilaws cullis nullahs talas doilies gillies polis coolies molas collies blaws boylas rallies gullies blahs hulloas lase sallies mollies lies colas dallies caulis woollies challahs tolas wallahs wallies ollas relays wellies selahs dials dailies willies sullies challies delis chelas chilis chillis slaws chollas tallis sials
dulia deli doula dual dually duel duelli duello dull dully duly