I have tried tons of different rubs and sauces. I have made several from scratch. For my homemade I have narrowed it down to 1 rub and 1 sauce. I rarely make them because of time and money.  But have some stand out store bought one's I really like, one is John Henry's Pecan rub it's great on pork and chicken. I recently bought a combo pack from Malcom Reed of his Killer Hogs sauces and rubs, we've tried the AP rub (salt,pepper,garlic) and my wife puts it on everything, haven't opened anything else yet. Many years ago I ordered 1 gallon of sauce from the original Oklahoma Joe's bbq restaurant and it to this day has always been my favorite. I recently tried to find it but I was having trouble, I was on Kansas City BBQ store's website and found this 
https://www.thekansascitybbqstore.com/collections/sauce/products/joes-kansas-city-bar-b-que-sauce
but shipping was a deal breaker, a few day ago I was trolling around Ace Hardware's website and found it with free ship to store so I ordered 1/2 gal. Hopefully it is just like I remember.