Controller for Android...Any recommendations?

Ive been shopping for a controller that will be able to do everything i need to do while playing AL without having to touch the screen on my Samaung Galaxy Tab A. The ideal controller would allow me to chat so i assume it would have a keyboard or something equivalent and it would also have a touch pad or mouse. Ive seen some posts adressing this question but they were all old posts. the controllers of the day at that time didn't seem to do what i want, and now i wonder if they do. Are there any tested suggestions?