Here is a quick and tasty marinade - bottle of Italian salad dressing.
Put the meat in a zipper poly bag along with the dressing and seal it. The poly bag is massaged and placed in the refrigerator for 2-24 hours, depending on the meat. For chicken, limit marinating to 2 hours. Pork and beef can be marinated for up to 24 hours.
There’s not much to it but the ingredients are in the dressing. Keep a bottle handy in the refrigerator and you’ll always have a quick and easy way to marinade your meat before the barbecue.