Got this to fix joy-con drift for the Nintendo Switch. It’s worked on mine and a friend’s joy-cons so far. People say you’ll have to reapply it to your joy-cons now and then – I used it about a month ago and so far haven’t experienced any drift again while playing some Splatoon 2.
Link: https://www.amazon.com/Company-300554-Specialist-Contact-Cleaner/dp/B084VP9JJK