If you are a content creator, or someone who might be at risk for swatting you can call your local PD and explain the situation. You can let them know that you understand they must respond to those types of calls, but just wanted to call in and let them know it could happen. Most are happy to hear from you and take note.
Before swattings became popular, people used to send pizzas (popularized by old 4chan) and you would have to call all the pizza places in your area and get your address blacklisted. That was a pain.
Unfortunately, I speak from experience. I received a credible threat, called my local PD, and they began to investigate immediately. They also put notes in their dispatch system (which is shared by the local SWAT team) indicating that this had happened before, and to proceed with extreme caution.
The "swatter" never did follow through on the first attempt, but did follow through about 6 months later. I didn't get any threats from the swatter that time, but did get a call from my local PD while I was at work, and they let me know they'd driven by my place and called it off after being confident it was a false alarm.
Anticipating questions: no, there's no sort of protocol I setup with the PD. They have to investigate every threat, and even if we setup some sort of "shared secret" ahead of time, if a swatter says I'm cutting up my family in the basement, the PD can't know with certainty that I'm not. About the best I can do is make sure to answer the door when/if the PD shows up so they can more quickly establish things are safe.
Also: the attackers were after some OG Twitter accounts I used to use, and they thought they could intimidate me into giving the accounts to them.