A Closer Look does some pizza shops in my state, but I know it varies from region to region. Plus, you have to have been shopping with them for awhile to see some of their clients as they will only be visible to shoppers with a good shopper rating that has to be built up over time, and their reports can be lengthy. There is a brewery restaurant that is a national chain for Mercantile Systems and they offer pizza on the menu, but I don't think they are shopped at all of their locations and the shops may not be available where you are going.
But I have to ask whether or not you are staying at a hotel? If you are, consider the vacation time you will be missing being cooped up in a hotel writing reports when you could be out having fun somewhere! I never shop on vacation unless I am staying with a relative who has a job and I am alone for a good part of the day. When I visit my brother and his wife in Houston, I will sometimes arrive midweek and do a hotel shop upon my arrival, then spend the next day writing the report while they are at work. But that's only if it's a hotel shop with a fee. And if they were retired I would not do any shops because none of us are getting any younger and I don't want to miss the opportunity to make memories with my family.