Barcelona management are determined to continue their youth recruitment policy in the coming transfer windows.
Barca are due to make permanent the summer loan addition of Rapid Vienna teen Yusuf Demir, while a deal is also in place for Emre Demir (17) from Kayserispor.
Sport says Barca are also looking at Hammarby midfielder Williot Swedberg, Ajax winger Naci Ünüvar and Dinamo Moscow attacker Arsen Zakharyan.
Norwich City forward Christos Tzolis is another being watched.
And also in the Premier League of interest is Wolves fullback Rayan Aït-Nouri.