Many locations of Total Wine & More and BevMo! regularly stock both varieties.
Services like Instacart , Uber Eats , and Drizly (via GoToLiquorStore) can deliver it from local shops near you. Review: Festbier vs. Märzen Oktoberfest Bier | Paulaner Brauerei - BeerAdvocate paulaner oktoberfest where to buy
Costco sometimes carries 24-count cases of the Wiesn variety. Many locations of Total Wine & More and BevMo
You can find Paulaner Oktoberfest at these major retailers and platforms: paulaner oktoberfest where to buy