I am interested in what kind of written work can be ordered. What options exist and what have you personally used? Maybe there are some people who do this professionally.

Honestly, I knew many different services that provide such services. Now I can recommend you only one option and that is link. There I ordered all written works, coursework and even writing of various articles. I am very pleased with the quality, as well as the time frame in which they do everything. I think that you will not find a better option!