Device info https://wiki.lineageos.org/devices/t6
Rom https://www.androidfilehost.com/?w=files&flid=299733
Please Note: This is an Untested build. Please try at your own risk.
I made an update for this device, enjoy 
:
e-0.9-n-20200703-UNOFFICIAL-t6.zip
TWRP : https://dl.twrp.me/t6/ (it’s old, try to find a more recent version of TWRP)
Don’t forget to backup and share your experience, thanks 