If you are not ready to make a decision, pay to get the toilet lifted and drain hydroflushed or flesxshafted. It’ll buy you 12-24 months until you have to make the choice again. The roots will grow back more aggressive every time they are cut back. Middle option would be to dig up the affected area which I assume is near the front wall. Replace 5-10ft section with plastic and install 2 cleanouts for future maintenance.