Would these work? I've seen people link them, but haven't tried it myself b/c people say the magnet can cause a deadzone for the Spen.

https://www.amazon.com/dp/B096W7MLGN/

https://www.amazon.com/dp/B075YB8C7F/

Here you go: https://www.amazon.com/dp/B075YB8C7F/ref=cm_sw_r_apan_glt_fabc_V159GC8VEH1AG4PWN57C