Digital figures are hard to come by. The best you can hope for is reading the Best Seller lists on places like Amazon.
https://www.amazon.com/Best-Sellers-...gbs/books/4366
It's a lot of manga, Walking Dead and then whatever titles currently (or recently) had a big cinematic or TV presence. Lot of Avengers, Infinity Gems-related stuff and Batman, then some Thanos, Captain Marvel, Black Panther, Miles Morales, Shazam, Deadpool, Guardians of the Galaxy Hulk, Ultimate Spider-Man, Umbrella Academy, Sabrina, ect, and a few wildcards like Ms. Marvel. Though, funny enough, the only Thor book in the Top 100 is the first collection of Aaron's Jane Foster run.