Planning a location

Choose a State or National Park or a commercial campground. Contact them for advice on planning details, plus their requirements or restrictions.
Most people today prefer three-point hook-ups, which are available in commercial campgrounds. Some have WiFi and cable TV access.
National, State and local public parks usually have water and electricity on site- but not always. Most have dump stations. Check if on-site toilet and showers are available.
Try to reserve a section where Airstreamers can camp together.
A “boondocking” rally means there are usually no utilities available. Such a rally is fine for a few days, especially if there are interesting activities to do nearby. Such a rally can be held at remote places in the National Forests, the Bureau of Land Management (BLM), National, State and county parks or on private land.
Camping together requires coordination- a commercial campground can often set aside a block of sites that are together- establish a working relationship with a point of contact at the campground, if possible, to have one-stop shopping – it makes life easier. Reservations at State, local or National Park are usually on a first-come, first-serve basis and require reservations being made oftentimes a year in advance.
A covered meeting place or hall is ideal – cooking or picnic facilities even better.
Consider adding the GPS coordinates of the campsite, not the nearby town.