LibreTube - uses Piped as video source by default. Subscriptions and playlists can be created, all without actually interacting with YouTube.
Clipious - uses Invidious as the video source. Also allows for subscribing and accounts. Lesser known client
NewPipe - Gets the source directly from YT. Allows for subscribing and creating playlists
Additionally, there’s also ReVanced that lets you patch the regular YT app to include useful features.
Normal stopped a while ago but extended is working well
Regular ReVance works just fine. Installed it to my wife’s phone just earlier today.
I saw it had an update. For a little while it wasn’t working right so I swapped to extended and that’s been running fine.