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.
laicise laicize liaises laces lases lazies leases lassis lasses lassies lassoes luscious luces lysis lyses leses loses lazes lassos looses losses louses lycees lyssas lessees lezzies loesses