Check out Brethren Ventures in the forum section. Several of our own brothers make rubs for sale. For Beef I suggest Plowboys Bovine Bold; BigBrotherSmoke's Simply Marvelous Sweet and Spicey Rub and Todd's Dirt. TD is my go to seasoning for just about anything.
Bo Compton in Mesa, AZ, KCBS CBJ
Weber Ranch Kettle, BDS Mega, OTS x 2, Weber Platinum
18.5 WSM w/Stacker from ProQ, 22.5 WSM, Reverse Flow Lang Clone 80 butt capacity mounted on 25 foot trailer with attached awnings
LFSA RED Thermapen,
And 1 2010 Victor brand Hot Dog Cart