Name brands such as Dell, Toshiba, Apple, Microsoft, etc., tend to have the best reliability and customer support.

One system that blends the best of both a tablet and a laptop is the Microsoft Surface 3 or 4.  It utilizes a keyboard cover that allows it to function as a laptop, but this cover can also be folded back and allows the device to be used as a tablet.  It has a touchscreen and runs the full version of the Windows operating system..

Chromebooks are not recommended.