Well I hope what your question meant is what are the popular shooting games going to be 2020. To be exact, there are many. To name a few; 1.) Apex Legends, a good shooting battle royale game. 2.) Call of Duty; this game includes a lot of game genres. 3.) World War Shooter; a good mobile-shooting game and of course....... 4.) Fortnite; there is no description required for this I guess! Well there are lots!!! These are just a few which are famous and good in my opinion.
@Gamer Girl are you looking for something to play with or reference for some shooting games because you are planning to develop one? My two cents: 1) If you are looking for something to play with then Steam list of games with the different genres would be a good start 2) If you are analyzing the available market to start your own then you need to check Steam, Play Store, App Store and perhaps even Windows Store, this analysis is crucial to check most of the succeeding titles and even get ideas from them Good Luck