When some country organizes an ICPC or IOI preparation camp, they often need a teacher from abroad. When they ask me, I usually decline because of a lack of time. I want to be able to link this blog so they would find a good teacher.
If you teach and want to be reached by camp organizers, leave a comment and say something about your experience.
Here's how it usually works. Organizers always pay for your flights and accommodation. They also might provide food and salary (500 USD per week or sometimes more).
There are 8-30 students and they don't pay for anything. You are supposed to conduct 5-hour contests and maybe do a few lectures. It's ok to reuse old problems instead of creating new ones (though it might be nice for a particular lecture). I usually cover IOI finals and Polish contests. And CSES is good for beginners.
If there are very few students, you can work more 1-to-1 with them and help with codes and upsolving. That's not really viable for a bigger group.
Feel free to advertise your 1:1 online coaching too. It's not the main purpose of this blog though.