The best champions out of lane to counter Талия include Калиста, Самира, and Джинкс. These picks are all good at countering Талия with win rates over 60%. Even if these Талия counter picks are not taken in the same position as you, it's not a good idea to choose her into one of these matchups. They will often crush Талия.
Yet, if the other team choses either Амуму or Картус, you should seriously think about taking her, as she easily crushes these champions with win rates over 54% against each ofthem.