I use newpipe, freetube instead of youtube.
It has everything but the discoverability that youtube provided.
I would atleast like a way to find new channels based on the channels I subscribe, if not new videos based on watched videos.
Need suggestions.
Not personalized. But what I personally use from time to time is the invidious popular feed, some invidious instances have the popular feed turned on, which shows popular videos streamed on that instance.
Instance list: https://docs.invidious.io/instances/
Example instance: https://vid.puffyan.us/feed/popular