There are many options here. www.chemie-studieren.de can certainly give you an initial overview. There you will also find contact details for the student counselling service at the respective university. Some universities also offer taster days
A comprehensive database of all chemistry degree programmes and further information can be found at www.hochschulkompass.de.
The GDCh also has various networks that could be of interest for further exchange on studying chemistry. Firstly, there is the JCF (JungesChemieForum), in which students are active regionally and organise various events. On the other hand, there are the local associations, which organise scientific lectures at universities, for example.
The Internet portal AusbildungPlus provides a good overview of the more than 550 dual study programmes currently available at vocational academies, administrative and business academies, universities of applied sciences and universities.
The database maintained there also contains many attractive training offers from companies in the chemical industry.