Hi load testing tools - Tracker Emulating

Hello to everyone

Does anybody know a tool or software able to emulate multiple devices data traffic towards "traccar server" emulating real life load?
I would like to have an estimation of "bare" server hardware requirements for 20-100 vehicles and obviously to start
Tracking and IoT business project.

We have this script:

https://github.com/traccar/traccar/blob/master/tools/test-performance.py

I have seen this Python scripts but would like to have something like multithreaded "*.gpx" file player in order to be able to check results in database as well.