What’s the best of the cheap beef cuts to smoke?

I like to smoke meat for the office on occasion, and I usually do pork ribs or pork butt because it’s yummy and cheap. But I have a couple coworkers who don’t eat pork, and so I want to do beef again. I’ve smoked brisket before that everyone seemed to love, but it’s just so expensive sometimes. Lately I’ve seen it $9/lb at minimum. The last one I got was miraculously $3/lb. Must’ve been the season for cheap beef I guess.