Switched to an Elecom Huge about 8 months ago and it's probably my favorite trackball ever! Comfortable, plenty of buttons, nice large ball, doesn't get much better than this imo. : r/Trackballs
ELECOM DEFT PRO Trackball Mouse, Wired, Wireless, Bluetooth 3 Types Connection, Ergonomic Design, 8-Button Function, Red Ball, Windows11, MacOS (M-DPT1MRXBK) : Amazon.co.uk: Computers & Accessories