Based on your budget of R2000, I would recommend either the Ematic 4K Ultra HD Android TV Box for R1399 or the M98 Pro 4K Android TV Box for R1599. Both of these options will give you a high quality 4K streaming experience. The Ematic box supports HDR10 and Dolby Vision for vivid colours and images, while the M98 Pro has 4GB of RAM for smooth multi-tasking. You can't go wrong with either of these options in your price range. Please let me know if you need any other details!