In short, you have to be Millionaire or a well known individual before you get to the Whale's Club, and this one is not possible for someone who are just looking for a signal.
I don't think whales will waste their time for this, not unless they have other agenda which can benefit them more by just simply creating a signal without having any basis.
The safest way to become a trader is to learn on your own and never rely to any signal regardless if its came from a whale or not.
I don't even think whales have a group to share their trading signals with. if anyone creates a channel and says they are a whale group. I'm sure it's a bunch of scammers in action in giving fake trading signals. and that would obviously hurt anyone.
I don't think the OP wants any advice, because he thinks maybe following the signals is something easier than analyzing. I hope he knows how much risk he can get.