Use pre-paid plans and change SIM cards often.
Use LineageOS without Google Play services.
Turn off your phone and put it in a Faraday bag when you don't need it.
Start leaving your phone at home more often. It's more freeing.
https://motherboard.vice.com/amp/en_us/article/a3b3dg/big-telecom-sold-customer-gps-data-911-calls
@EzriJayu
Why change SIM cards?
Also, is there a way to poison the GPS data? Providing the people tracking you with fake or noisy signal?
@EzriJayu I personally have no issue with (most) of my information being tracked. However if I was this would be good advice.