The subject of the thread really caught my attention, and I'm eager to know how to follow whales too, but the comments so far is about the indicators to follow, so I guess that whales do not want people to follow them, every trader has to research and find their own indicators. You suggestion is also good, a trader can follow a signal group, and make the most of it, in all the crypto space, I think that trading is the most complex and it requires a lot of expertise and commitments in order to minimize loses and become profitable in it.
How do you know they are actually whales?
See how they are rich with their assets, lifestyle like Sam Bankman-Fried?
Whales can be smart with investment, trading or just are rich because of their scam, fraudulent activities like SBF.
Following whales will be like using a double-edged sword and you can get benefit or get harmed. If you are not smart, you can be manipulated by their signals and become victims of their distribution.