This kind of data hard to come by, usually paywalled and even I doubt the accuracy of the data.
I usually just consider the fear indicator to determine retailer participation, so far I haven't found any such data except maybe data about address owned by institutional vs retailer.

https://en.macromicro.me/charts/29402/bitcoin-addresses-with-balance-more-than-or-equal-to-0-1

even then I don't even know if it's reliable.