This is the 5462nd most frequent Turkish word.
listelerinde
"Listelerinde" means "in their lists" in English.
Here, 'listelerinde' refers to the lists of products the store has, used to indicate location or scope within the lists.
Bu mağaza, ürün listelerinde indirim yaptı.
This store applied a discount in its product lists.
In this context, 'listelerinde' denotes possession, specifying that the lists belong to the friend groups.
Arkadaş gruplarının film listelerinde ilginç filmler var.
There are interesting movies in the movie lists of the friend groups.
The usage of 'listelerinde' here indicates that the bestsellers belong or are part of the book lists.