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.
dulse duels duals dulls doulas dulias dols dialyse delouse dels dals duellos dualize delis dahls dolce dells doles deals tules dials deles dills dales deils dolls diols delays tulles dalles dalasi dewless dillies doilies dahlias dellies doylies doolies doolees dollies dialyze dailies dallies tuilles doyleys tels tils
pulse dulse dulls valise jalousie hulas nulls mauls joules mules cauls caules lulls culls bulls coulis pulls villose lose fuels rules fouls souls fulls xylose falsie dialyse false duals filose tules wauls shuls close pules gulls guls buhls pulis valse jouals hulls pilose mulls miauls callose clause caulis lulus gules puls hauls realise boules shauls ulus else lase blase duels doulas louse blouse delouse ghouls sulus lyse sauls yules
doula dual dually duel duelli duello dulia dull dully duly