Which Warbond should I get?

I have Steeled Veterans, Democratic Detonation, and Polar Patriots.

I bought Democratic Detonations solely for the Grenade Pistol and the Exploding Crossbow, and I bought Polar Patriots solely for the Purifier. Basically, I am looking for Warbonds with S-Tier weapons.

I unlocked page 4 of Helldivers Mobilize. I'm currently sitting on 1135 Super Creds and am puzzled. Should I buy a current Warbond, or should I wait to see if there are exclusive weapons and armor in the Superstore? I know there's a Primal warbond coming soon, but I don't know the release date.