Hi Marisa,
That’s a good question!
In fact, that lesson will be uodated within the next 30 days to reflect the new audience insights interface.
But i’ll be happy to assist you here in the meantime.
You can access audience insights here:
https://www.facebook.com/business/insights/tools/audience-insights
Then, make sure that you use these options:
https://drive.google.com/file/d/1gv3rR2v3SQBqdirra54M8oLOyO–OSF4/view?usp=sharing
When you click to filter the audience, you’ll be able to add some demographics, location and, most importantly, interests. Add interests that are relevant for the offer you’ll be promoting and then scroll down to the “Top pages” section.
If you add just few interests, you’ll see only some general stuff there such as “Amazon”, simply because many people in the US like Amazon and it will be considered somehow related to almost any other interest.
However, as you add more interests, you’ll start to see some relevant pages there that can help you come up with potential audiences and more interests to target.
The way Facebook ranks those top pages is pretty much in the same way they used to apply the affinity metric.
Hope it helps!
William