I’ve been using Nginx for a few years now and I’ve found the official documentation and forums to be very helpful. They have a lot of examples, tutorials, and FAQs that cover most of the common use cases and issues. You can also ask questions on their mailing list or IRC channel and get answers from the developers and other users.

Another resource that I like is the Nginx subreddit (r/nginx). It’s a friendly and active community where you can post your questions, problems, tips, and feedback. You can also learn from other people’s experiences and solutions.

If you’re looking for more specific or advanced help, you might want to check out some of the online courses or books on Nginx. I’ve heard good things about Nginx Fundamentals by Ray Viljoen and Mastering Nginx by Dimitri Aivaliotis. They cover a lot of topics from installation and configuration to optimization and security.

Hope this helps!