Planning a wedding in 2 months

Planning a wedding in less than 2 months. We’ve started on a lot but haven’t booked anything yet - venue is in the works though! We plan to send save the dates next week once it’s booked. What needs to be on them? Date, city, our names. Anything else?

We obviously need to book our vendors but what’s a good resource or checklist? The knot, Zola? Do we need a website? A registry? Help!