If possible, STD maps that allow for competitive sight reading shenanigans ala UKSRT/taro4012. Messing about with foreground elements ontop of circles, customising circle animations - it'll basically be storyboarding to a whole new degree and will probably bring way more attention to it than ever before.

A XP-Pen Star G430 ( https://www.xp-pen.com/product/46.html ) osu drawing tablet is quite decent and cheap, there are some tablets that are similar but that I haven't tried them. The hand movements are quite different, so you will need to re-learn muscle memory.

A tablet is an absolute positioning input device instead of a relative positioning device. Each position of the pen tip on the tablet surface places the cursor in a certain spot on the screen. With a mouse, you move your mouse to control the velocity of the cursor on the screen.