Sounds like you're off to a great start sounds like a great brine. The rub I'm going to recommend isn't going to help you for tomorrow because you most likely have to order it. Oak Ridge BBQ makes some excellent rub. Their Secret Weapon chicken and pork rub is awesome.
Plowboys yardbird is a good one on chicken. It is also good to have around to try on other things. I use montreal chicken as well some times. Mcormick Roasted Garlic and Herb is also very good, and my wifes 2nd favorite to the plowboys.
I just use salt, pepper, granulated garlic, tyme, cumin,and some red pepper flakes. Seems to work well with wings. Brine them first then I let them sit in rub for 30 minutes in fridge while smoker gets up to temp. (275*F) 2 hours then finish some of them with Franks Red Hot sauce with a added stick of butter, unsalted of course. Simple and easy. I use almond wood BTW.