Promotion of mobile games in the foreign market?

Question

Marketing

Everyone knows that without prior promotion, even the freshest idea is doomed to fail. There are many promotion methods, but the most important, as far as I know, is advertising on thematic forums, social networks and blogs. In the domestic market, it is absolutely obvious where to go - w3bsit3-dns.com. And what are similar foreign advertising monsters? Preferably, but not necessarily with a similar form of advertising applications.