I like jenna
It's hard to think of a name when you don't know the other names. If you like the idea of j names go on a baby name list, look at J names and then write down the full name and say it out loud. I have each of the first names we liked wrote down, with the different middle names we liked and our surname. We went with one of the first names we had picked as a middle name (it has meaning behind it) and when you wrote it/say it out loud it just sounds right and works.
Jade, Jane, Jay/Jae could look on baby name lists, pick out ones that begin with J, find one you like then say it & write it down, you will definitely find the right one. I picked my name out and said it out loud then wrote it down & it was perfect