Switter was the third biggest Mastodon instance when it was open. It was specifically set up by, and to be Sex Worker freindly.
Guess what happened... Laws passed in Australia that made running the instance troublesome, and the hosts couldn't afford to constantly legally defend themselves, so it closed down.
Try and find an instance that welcomes Sex Workers and allows them to advertise. Last time I checked there just isn't one. I'm a photographer that works with Sex Workers, and from what I have seen they will stick with twitter until it is offline, then probably head to bluesky.