Hi!
I've looked over the repair guides of the Droid Turbo 2 and it seems like the charging port is soldered to the mainboard, which means it is difficult to repair in your own. You could certainly try soldering it back yourself if you feel that your soldering skills are good enough.
If you follow the steps outlined here, you could get to that port: [guide|73458]
Otherwise you could send it in for repairs (obviously for a fee) but it may be wiser to spend that money on a new phone.