This is all nonesense. Only bitcoincash bitcoingold and maybe one or two others gave you anything. The rest are filthy lies and tricks to get people to make mistakes when they claim their so called "free" coin. Most of these coins have no wallet so there is nowhere to import your privatekey.
You have collected a full information of bitcoin folks. But I don't think there is any benefit of making these forks. All these forks are just shitcoins now as people don't feel any excitement about it and don't even bother of moving their bitcoin to the private key wallet to take advantage of these forks as they are free at the time of forking.
But if their price is decent you can just sell them immediately to get free money.
The price is decent but you can't claim anything. It is a scam. They all claim the same thing and even their websites looked the same. They all say they will have their own wallet "soon". That means nothing.