Fire: Uriel
Water: Vohu, you have Saraswati, but you lack Ryu-Oh to complete the triangle. Still, would work.
Wind: Uh, you really should use Titania over Azazel until Awakening. No huge upgrades for you here, Hastur would let you reach debuff cap without outside help, but friend Hraes and Wind Neph does that for you already (why not use her...?), Aether would work for Burst memes.
Thunder: Marduk Awakening coming up.
Light: Tish. You have Michael, get Tish.
Dark: You already have the good stuff, pretty much. As soon as SSR Amon rebalance happens, put her in and you'll be at -50% Def.So your Wind team had problems against Ygg? Don't use Pazuzu. She's AWFUL. Quetzal is available for Orbs, and is the best you can get when using a friend Hraes with an offensive Soul weapon, which I assume you have.
With my Shingen, AW Titania and AW Gaia, Ygg GOs have been utterly hilarious. It's like, nothing can touch me and I just Full Burst everything down all the time. I'm not convinced if Gaia is worth a slot half the time, but she puts in some serious (defensive) work when she is in the team.