What widgets perform the best?

Native widgets have a very good performance rate. Usually, we recommend starting with an under-article + in-article widget combination. Together they show great results and help publishers with revenue.
Also, the Smart widget is the alternative to an under-article widget. After multiple tests, the Smart widget has shown wonderful results, high CTR, and a good CPC.
You can read more about our widgets here and here. If you want to hear personal recommendations, you can contact your manager.