From this article I learn that in former Yugoslavia, among several youth magazines that played a significant role in eroding the Party’s message was Val (“Wave”, 1976–90), that began publishing in the Croatian port city of Rijeka just as punk was spreading (for leads to punk in Yugoslavia, see here, and wiki).
The first punk bands in Croatia were Paraf and Termiti—here’s a playlist:
From where we are today it’s easy to miss the more challenging aspects of the movement. The female band Cacadou Look (playlist) seem more polished than snarling, and they appear to have a certain musical ability, generally frowned upon in punk:
After the fall of Communism the mood of openness was soon blown away by nationalist insanity. But today Rijeka remains something of an avant-garde enclave; like the Łódź YMCA after World War 2, it turns out to be a cultural mecca, serving (along with Galway!) as European Capital of Culture in 2020 (Nobody Tells Me Anything).
For the current scene, there are several playlists on YouTube, including the female band Punčke.