http://www.techradar.com/news/google-assistant-is-coming-to-many-android-tablets-soon

Google announced that it is bringing Assistant to tablets, reversing its original decision to keep the voice-friendly assistant a phones-only affair. You’ll soon be able to find it on any tablet running Android Marshmallow or Android Nougat. 

This includes a wide swath of options available from the likes Samsung, Asus, Lenovo and more. Some popular examples would be the Samsung Galaxy Tab S3, Asus ZenPad 3S 10, the Huawei MediaPad M3 8.0, but the list goes on.