In that case, you're lucky. It varies a lot. While there's no extensive data source with that info for every city, we called each pizza place around downtown C

In that case, you're lucky. It varies a lot. While there's no extensive data source with that info for every city, we called each pizza place around downtown Cincinnati in the evenings while we worked. We were quoted 30-90 minutes with an average wait of 43-49 minutes and a median wait of 45 minutes. Some of these were even ≤ 10-minute walk from our coworking space. One interesting observation is that chains often beat indie place quoted times by 5 minutes. We also collected more anecdotal non-pizza data from my personal experience in the bay in 2014: I was so excited to try Caviar for the first time... and every restaurant I attempted gave a wait of 60-120 minutes or more until eventually I gave up and just walked to food.