Krusevac

From Hitchwiki

Kruševac (Serbian Cyrillic: Крушевац) is a city and municipality in central Serbia. According to the 2002 census it had a population of 75,256 (municipality: 133,732).

Hitchhiking works good, although it takes time, depending on the place.

For more up-to-date info, it's better to check Hitchhiker's guide to Serbia on "SerbiaTravelers Club" website.