If I’m right you have a teleport to function. Generate some random numbers within a certain space. Or pre determine some locations either by placing devices or by hard coding them. Then you should be able to teleport players randomly. Don’t forget if you do predetermined ones to remove the location from the array after teleportation. Otherwise there is a slim chance that 2 or more players end up on the same location.
If this doesn’t work let us know in this forum.