You should see YouTube Premium listed on the page.
You can cancel your trial at no charge at any time before the trial is over through the app.
This includes series, movies, and events by the most popular YouTube celebs.
Premium membership also has other benefits, such as running YouTube in the background and implementing an audio mode that only allows other apps to stream the audio of the clip.
This covers YouTube, YouTube Kids, and YouTube Music apps.
Check Out How to Get Free Trials to Similar Apps.