the affordable Samsung Galaxy Tab A7 Lite may be enough for you. Its 8.7-inch screen is decent with WXGA+ resolution, while maintaining portability so you can easily hold the tablet in one hand.
In the UK, you can buy the 64GB version directly from Samsung ... It also has a USB-C port and a 3.5mm aux input. The Samsung Galaxy Tab Active3 has an 8-inch 1920 x 1200 (WUXGA) display.