Go to the group page from the top and choose the one you are interested in from each category.

For example, I like culture. Click in and you will see the topic on the left.

Of course, you can also see the culture-related groups recommended on the right.

For example, I chose the Spanish group.

You can see the detailed introduction below.

If you want to join, please click.

Of course, you can also choose interest groups by the hottest/latest topics at the bottom of the page.