Community polls are lightweight engagement tools that allow Creators on Youtube with at least 1,000 subscribers to get closer to fans beyond video. This gives you an easier, lightweight way to engage with your audience more often and in between uploads, right on YouTube.
To create a Community post, go to the tab called “Community” from your channel homepage on desktop or mobile. From here, you can promote a collaboration video; poll your audience on what type of video they want to see next.
Figure: Creating a new pool posts on a YouTube channel
Figure: Example of a poll post result that helps you tailor your content
More info on YouTube Help Center | Create a post.