Which wines are Kosher for Passover that are recommended? On what days and times is the person most knowledgeable about your Kosher wines will be available this weekend?

I would not rely on the employees of the store to be able to answer your questions about what is and is not kosher. They are not trained, and may only refer you to some isles. people have at times put things back on shelves that were not Kosher in the kosher section, so you should consult with someone you trust with kosher purchases beforehand.

They have a pretty well-defined "kosher" section, and they have a nice selection of wines within that area.

You can call the store and ask them, I'm not sure that they respond to questions on Google