Not providing any channels (the ones I know the most about are listed by OP and commenters), but more about non-YT versions of channels about privacy being on YT. For people that use YT but are open to LBRY/Odysee/PeerTube. I have found these extensions to be great for quickly seeing if a channel is also on those services. If anyone knows of others like these, I would like to know about them. And for anything that isn’t also on them of course Invidious instances are great for at least having some amount of privacy while dealing with YT (at least until Google finds some way to stop them from working).

Disclaimer: I am not a dev (or these or anything) or an auditor of security, so I can’t say how good or bad these are outside of personally finding them useful. I also am not affiliated with them and again just find them good for seeing if non-YT versions of channels exist.

For LBRY:

https://addons.mozilla.org/en-US/firefox/addon/watch-on-lbry/

https://chrome.google.com/webstore/detail/watch-on-lbry/jjmbbhopnjdjnpceiecihldbhibchgek?utm_source=ext_sidebar&hl=en-US

For Odysee:

https://addons.mozilla.org/en-US/firefox/addon/watch-on-odysee/

https://chrome.google.com/webstore/detail/watch-on-odysee/kofmhmemalhemmpkfjhjfkkhifonoann?utm_source=ext_sidebar&hl=en-US

For PeerTube:

https://addons.mozilla.org/en-US/firefox/addon/peertubeify/

https://chrome.google.com/webstore/detail/peertubeify/gegmikcnabpilimgelhabaledkcikdab?utm_source=ext_sidebar&hl=en-US