Need help naming my Twin Girls?

I am currently 24 weeks pregnant with twin girls and looking for opinions on the names we have narrowed it down to. My husband and I have decided that Baby A will be Juliana Catherine. We are still undecided with Baby B. We both like the names Jillian Caroline and Jasmine Caroline but not really sure which one to go with or also open to think of other names. We have a 19-month old son, John Michael and would like a name that would flow with his name as well. We are sticking with the 'J' names and do not like Jessica, Jamie or January due to past relationships. Also, I do not like Josephine or Jacqueline. Thanks in advance for your input.