@Book The translated novel is still ongoing and there aren't really progress with the girls.
That is all i think ;P
Spoiler!
But i can confirm yennika, lucy, lortel, 3rd princess (Penia or Phoenia), saintess and surprisingly merida. Also the other princess the first and second are interested in Ed because of his involvement in 3rd princess arc. to summarize the personality of the princess the first princess focuses on winning the kingdom, while the second focuses on power like literal power, how strong the person is.
There is one girl I forgot her name since it was machine translated so I can't assured you the name.
Cat