I've found matbea (https://matbea.net/) quite useful in the past as well, but it seems that the site is slighly broken.

It used to track adresses like Walletexplorer, but also included exchanges such as coinbase, bitflyer.jp,  et al.

(I'm not entirely sure if it still does so correctly.)

EDIT, just tried it: Seems like it still indexes coinbase adresses. Not sure how accurate it all is though.