What new character should I make?

My main character is a lvl 200 f/p and I currently have a total of 5 characters in the world I play, I would like to get suggestions on what new character I can create to complete a 2nd card set to compliment my main. I currently have the following characters:

F/P - Rank SS (Adventurer/Mage)
Demon Slayer - rank S (Warrior/Resistence)
Mercedes - rank S (Bowman/Hero)
Cannonear - Rank A (Pirate/Adventurer)
Thunder Breaker - Rank A (Pirate/Cygnus)