Best kosher restaurants in and around Zurich?

My friend is coming to visit in a few weeks and I'm trying to prepare for the visit. Since he's an orthodox jew, we will probably have to eat out for every meal since my kitchen is anything but kosher. But I don't really mind, that gives me a break from cooking 😅

So I am looking for the best kosher restaurants / bakerys in and around Zurich!

I have no experience at all and want to make him feel as welcome as possible!