I'd like to practice HSK based on tests from previous years, but have trouble finding them. Is there a place where those were collected for the general public?
The Internet is full of them, starting from https://www.confuciusinstitute.manchester.ac.uk/study/testing/hsk/hsk-learning-resources/
Buy them on taobao, or jd.com, about 60 Kuai a book, usually 8 exams I believe, with a CD for the listening part. Just enter HSK and the number of the level you want.