Kann ich in einem Sprachkurs auch nur das Spanisch-Sprechen üben?

There are so-called conversation courses, which are offered by many language schools and in which you practise almost exclusively oral communication in Spanish. This involves, for example, reading, discussing books or engaging in discussions on very different topics. However, such Spanish conversation courses are usually only offered to people who already have a sound knowledge of the language and are considered advanced. Beginners usually start with conventional language courses in which they are gradually introduced to this foreign language, practise grammar and build up the vocabulary they need to be able to hold a conversation at all.

Language courses for vacations also consist largely of oral communication for speaking Spanish, although these do not fall under the heading "conversation course" and are not suitable for advanced learners, but are very suitable for beginners. So if you are looking for a course in which you can only improve your linguistic expression and pronunciation, conversation courses in Spanish are the most likely option for you.