Please provide some subscription source templates

For common topics (similar to AI like this), please provide some official templates of quality subscription sources or give the ranking of subscription sources. Your product's fee logic is based on content + AI, and the content comes from subscription feeds, providing the above content can reduce the threshold for users to get started.

Just like social media's Polaris indicator is "follow xx users" so that the feed stream will have content, shouldn't your Polaris indicator be how many quality feeds users subscribe to?