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.
dell delly del duello duelli dull dele deal diel doll tell dill deli deil duel telly dally dully delay dilly dolly dually tel dal dol dahl dual dale tall toll tele dial tael diol tela till teel teal duly dole daily tally telae teloi doily dooly doula doyly telia dulia tulle
bell ell fell hell jell quell mell knell cell sell dell tell well shell yell el