There are so many good commercial sauces and rubs now that sometimes it'd tough for me to pick just one or two. A few of my favorites are....

Slap's BBQ - ribs, pork

Blue's Hog - chicken, vanilla ice cream (not kidding)

Kosmo's OP X-1 - brisket

Clark Crew Original - brisket, ribs

Baby Huey's Sweet Fire - ribs, pork

There are many others, but these are the one's that stand out.

Know fat, know flavor. No fat, no flavor.

I tried going vegan, but then realized it was a big missed steak.