Partial transfer from the German stocks thread:
Where can one find good information about German companies?
Taavetti has mainly used the https://www.finanzen.net/ service.
The following also seem to have a free version of their service:
Are any of these familiar to anyone? Regarding the last one, I’m a bit concerned about data security, as the first link I found there was to some portfolio - though it could also have been an example/advertisement or something similar.
And does anyone know where discussions about stocks are held in German?
I looked at some dividend companies with aktienfinder, e.g., Norwegian Vår Energy has occasionally interested me.

The image shows profit stability numerically and five-year growth.
The following image is, in my opinion, important for dividend chasers:

For example, I was quite surprised by the recent rise of Finnish Reka Industrial before its large dividend. If a company cannot improve its earning capacity in the long run, the only benefit of large one-off dividends tends to be a potential tax advantage if one is selling another stock at a profit. For example, this scares me a bit with Mandatum (I own a small amount of it).
More about that service: it also contains a lot of other information in German. I should probably expand my vocabulary a bit. For example, dividend yield has been analyzed based on various factors (also with the help of an image), as has the growth of dividends and earnings.
Unfortunately, the free version is quite limited in terms of stock universe.