Check this website
Top 100 to 800 (and so on) Richest Bitcoin Addresses.
Most famous wallet came from exchanges with huge volume such binance, bitfinex and okex, others are unknown.
And for you to identify who own those other address are too difficult not unless they declare by signing message for proof. And not every time a wallet whale moves its balance mean there's a dump or pump, sometimes normal trading activity with a good or bad news always affect the price.
There's no benefit to the OP just knowing the pauses' wallets, it's also like you said, only exchanges that have huge amounts of Bitcoin so far. Then the rest of the unknown addresses could possibly be said to be individual Popes or perhaps some institutions that have held large amounts of Bitcoin.