I hear a lot of people saying to clean the port and I agree. I've found with usb c it's often very difficult to find something thin enough, but I've found a staple to be surprisingly good at the job
I've started to train myself to put my phone in my pocket "upside down" with the charging port up. It collects much less pocket lint, but now I drop it more when I take it out and flip it around. I'm hoping that I get better at this soon.