I'm very happy with the LI options so far! I keep changing my pairings but I think I'll be going with this;
Female qunari mage/ Cullen: She's an honorable knight enchanter who lives by a code. While stern and serious on the outside she harbors a terrible secret crush on Cullen. She has no fear when it comes to facing dragons and demons but fears being alone with the handsome former templar XD. She tries to control her feelings for the sake of her duty but still acts so awkward around him.
Cullen: Inquisitor I was hoping we could speak more tomorrow. There are still some things I'll need to go over with you, if you don't mind.
Inquisitor: Very good. I'll take what you can give me.
Cullen: *blink*
Inquisitor:...ADVICE!...*cough* I'll take whatever advice you can give me. *awkward silence* Goodnight Cullen
Cullen: Er, good-*door slam* night. Inquisitor 
Inquisitor: *leaning against the door* 
Human female rogue/ Varric: She's mad
Even sera and Iron bull have to worry about her dangerous love for traps and explosives. Nothing makes her more happy than watching her foes blow up on the battlefield. She's likes to solve problems with her cunning , always trying to outsmart people and enemies. Despite this, she is a very caring and friendly person , most of all she's incredibly inquistive. She loves solving things, whether it's her survival, her new fade powers or the secrets of her companions. She likes to work things out so it makes sense that she is drawn to one of the most closed off and secretive companions on her team. She'll get Varric to talk even if she unknowingly falls in love with him in the process.
I'll need to think about the other two pairings in more detail but I'm probably going with
Female necromancer elf/ Sera: A sweet, gentle girl who raises the dead. Despite her horrifying powers, she's actually naive and a bit sheltered , sort of like Merrill.
Female dwarf warrior/ IB: She likes a challenge, that includes her romances XD.