OpenAI forums for one. https://community.openai.com/ https://community.openai.com/ They don't really have customer support, so most of it is the community, and

OpenAI forums for one. https://community.openai.com/ https://community.openai.com/ They don't really have customer support, so most of it is the community, and so you learn a lot on the flaws and strengths of LLMs.