I use the Grill Mates pork rub and their Applewood rub shown above. I also inject with Tony Chachere's roasted garlic and herb marinade. I do this the night before and wrap and refrigerate. Pull out when I fire up grill. That's my way. There are many.
Oklahoma Joe Offset, Weber 22.5 OTG, Charbroil gas
iGrill2, Maverick ET732
Super-Fast Thunder Blue Thermapen