You could use my guide on how to track every players’ positions to make this system.
You would just have to add a distance based tracking system that tags anybody near you (probably within 1 or 2 tiles but you’d have to play around with it) you can find where I made this in this among us guide under the 2nd part of the killing section:
https://forum.creative.gimkit.com/t/the-ultimate-guide-to-gimkit-among-us/12755
Just change the ≤ 3 to be a 2 or a 1, and make it run constantly instead of having to push a button.
(I knew this guide would come in handy a lot lol)