LibreOffice Base 25.8.2 Training

I have been using LibreOffice Base now for several years, but I have not been able to locate a good source for extended trainging beyond the basics in North America. I am starting to think I may know than most, but I would love to chat with someone who uses BASE more regularly and is taking advantage of more of its features. Please reply.

You have seen Base Guide?

If you need more help: I’m German and will understand a little bit English. Enough for writing comments her in ask.libreoffice.org and writing many bug descriptions for LibreOffice Base.