Guild Wars 2

There are many players like me who love GW2 so much that they could spent some hours per week, doing all kind of GW2 advertisement (under supervision of GW2 stuff). It doesn’t cost much to give these fans some Gems or a title, or real life souvenirs, but their enthusiastic actions could attract many new players, giving developers a great profit, which in turn will make this game even better!

There are already many websites, YouTubers, etc that already do this and many of them do get rewarded for it from ArenaNet in different forms, either real-life promotional goods or getting to see new content early, among other things :)