I have a BBQ rub (and hot sauce) problem. My pantry is crammed full. Seriously. I need professional counselling! So, if you're ever curious about a particular rub, ask me, as I likely have it in my pantry, or have tried it sometime in the past.
LOVE the Yardbird! My "go to" for chicken. The rest of their line is very good, too.
Wasn't a big fan of the Smoking Gun (Hot) rub. Just didn't do it for me.
Love all the Dizzy Pig rubs. They partner with that other green thing, so if you have a local store that sells Eggs, they likely will have some Dizzy Pigs rubs, too. They are also marketing a collaboration rub under the BGE label. Haven't tried those and probably won't.
Oakridge BBQ rubs are all the bomb.
Billy Bones rubs and sauces are great, especially the Cherry Bomb. Super on duck breasts.
I like SuckleBusters stuff, too. Hoochie Mama is my favorite in that line. I use their Gunpowder (powdered jalapenos) in lots of other cooking.
3Eyz BBQ is a good rub, too. I use it on pork ribs a lot.
I also throw together my own rubs now and then, but I never write anything down, so it's hard to duplicate them. I also like to blend commercial rubs together to create new profiles or to balance out things in each one that I think are disproportionate. Just part of the overall fun of BBQing!!