To put it bluntly, an iPad doesn't complement an iPad. If you're looking for a second tablet, I'd look into a refurbished or use surface pro, that way you can have an x86 processor to run applications that would need it.
But if you have your heart set in a smartphone os tablet, I'd say to get a Galaxy Tab S2 or S3. Cheap and easy
But if you have your heart set in a smartphone os tablet, I'd say to get a Galaxy Tab S2 or S3. Cheap and easy