Yes, through charts it's possible to have an idea about how the funds are splitted among the addresses. Like this site for an example: https://bitinfocharts.com/top-100-richest-bitcoin%20sv-addresses.html
On that site you can find informations about how much addresses of a respective currency are hodling approximately.
To know if whales are accumulating more coins, you need to follow it and compare past and present charts: if the number of addresses hodling many coins is decreasing or increasing. Unfortunatelly there isn't information about many currencies, and some of them are not possible to know, like eth.