I was today days old when I learned about the Feed Marketplace on nostr:nprofile1qythwumn8ghj7mn0wd68ytnsv9ex2ar09e6x7amwqyvhwumn8ghj7mn0wd68ycmgv43kktndv5hhyetvv9usqgzn9kpsmllqnsf7wh5tz3wgy4cclsftqqplv8tpayrhwgw8llunevk4p6dz for NOSTR.

Are there more options? How are these created? Why don't people talk about this more?

What feeds should I use?