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.
lilac
lilac lac shellac tilak celiac pollack plack coeliac clack ilka ileac iliac heliac flack black alack laic lack slack wilco shellack
lilo lily ileal ilial glial slily