What to choose a mobile games publisher?

Only recently was the article on habré the topic: https://habrahabr.ru/post/301846/. The essence, briefly, is that publishers are many, and among them there are many unscrupulous. So you need to carefully read all agreements and contracts, especially the fine print.

and can you recommend resources for the promotion of mobile games, whether to invest in the promotion? This is my first game, it's very simple. Here is the link if interested
https://play.google.com/store/apps/details?id=com....