I already submitted my take on this to Show HN: https://currantfeed.cc/. Noone gave a shit so it's most likely a very bad idea and certainly a very steep uphill battle. It's basically an Airbnb for websites that by default randomly sorts them and then you can filter by different attributes. Owners have to submit and maintain their "listings". It does have an optional subscription (I'm not sure if it works haven't tested it).
There's no alternative left, no webrings, no web directories. If all your content is now only on your server, you're invisible.