This advice is missing something crucial which is how to discover new creators sans feeds. Not saying it's impossible, but it's something they excel at and they've extinguished a lot of the old ways.
The more people that do this the more we can start rebuilding networks of people we trust and still retain control over the diversity of our sources.
* In Bluesky I read retweets and comments to find new people to follow.
* I send content to friends and they send some back. I’ve found creators this way.
* Search for interesting topics, see who is generating content on those topics. Follow/subscribe if you’d like to see more.