And you guys shouldn't forget about one thing.
0 Weapons will arrive soon too.

Water:
Bow or Glaive grid is possible 4 everybody. Axe grid mostly for whales.

Fire:
Spear grid is possible 4 everybody. However whales will make their Spear Grid OP with Mars FLBs.
Ascalon = Sword grid

Thunder:
If you didn't miss any UE Weapons = Gun Grid. Otherwise you have to wait until thunder Guardian comes out.
Her Gun has the same skill like Mammon FLB.
Ofc Whales will use Mammon weapons in their grid.
Spear grid only for whales or people who brick Baal U and Jupiter Spear. Otherwise you have to wait till the thunder Guardian comes out. She has a good Spear too.

Dark:
Hammer Grid. 3 UE Hammer, 1 from a Raid Event and one KH weapon.
Otherwise Axe Grid.

Light:
Only for dolphins and whales.
Otherwise Axe grid if you have one copy of Autum weapon or run a SR Axe.

Wind:
Only for whales tbh.
Glaive grid possible only after the wind Guardian arrives.
Otherwise a shit Sword Grid with Mii Sword, UE Swords and Arthur Relic.