In relation to one of your other posts, I will reply re Chinese employers:

1) state-run educational institutions
2) private - state-run parnerships, eg a privately-owned college linked to a state-run university
3) private high schools, colleges and universities
4) private training centers, eg EF, Aston.
5) agents

I should also mention recruiters. They get one-off payments from Chinese employers for introducing FTs. The main difference between recruiters and agents is that agents pay the FTs monthly after deducting commission from the monies paid to them by the workplaces where the FTs were sent. In contrast, the workplaces where the recruiters introduced the FTs pay the FTs direct.

In my opinion, categories 1 and 5 are the best. Then 2 and 3. I think 4 is the worst. I should add that many agents are sharks, but there are some good ones. Best to work at a category 1 place, even though you are there on behalf of an agent, or get there via a recruiter.
My preference is to be at a category 1 place via an agent with a teaching assistant supplied to me free by the agent, and in a county or a small town.
I've been employed in every category. I've been employed both direct and via recruiters in categories 1 -5. In category 4, I was employed direct.