Kovacic new club
You're referring to Mateo Kovačić, the Croatian midfielder!
As of my knowledge cutoff, Mateo Kovačić currently plays for Chelsea FC in the English Premier League. He joined the club in 2020 from Real Madrid, where he spent four seasons.
Before joining Real Madrid, Kovačić played for Inter Milan and Dinamo Zagreb, among other clubs. He has also represented the Croatian national team at the international level, earning over 80 caps and scoring 5 goals.
So, to answer your question, Mateo Kovačić's current club is Chelsea FC!