i don't think many here marinade their ribs, but that's not to say you can't. I would say remove the membrane first so you get max marinade penetration.
I'm not much of a rib guy other than beef short ribs and pork rib tips, you will get a lot of flavor without overpowering the pork taste if you just use rub and leave overnight.
Did you have a marinade in mind?
As for a spraying or mopping sauce, I like to go with something that is a mix of hot and sweet and a little sour.
A favorite of mine is Coke, some apple cider vingar, and cayenne. Sugar in the coke gives color and flavor, vinegar gives a little tang, and cayenne will play back up with some heat. I use this once in awhile on butts mostly.
Welcome!