What ingredients do I add to my pre-existing dry rub?

[Rickywells3]

Hello, recently my significant other purchased a couple of dry rubs for me.

https://www.pepperpalace.com/Ghost-Pepper-Rub-p/801.htm

and

https://www.pepperpalace.com/The-Big-Easy-HOT-Seasoning-p/859.htm

I would like to use them to flavor my jerky and I was wondering what other ingredients I need to add to maximize longevity and flavor. I am fine with turning the rub into a brine or a marinade if that is easier as I know they offer more flavor!