I do not play these games much but my son always annoys me with the game updates. I would recommend Player unknowns battlegroundsб Fortnite, Team Fortress 2, Warframe. You can find more games for free in the pirate bay library. Since it's all very expensive. I found a very cool free site for me. Now we can download without any restrictions. The main thing is not to hamper your studies and work.
League of Legends/Dota 2: These may be fun if you are just a guy who loves tactical and skill-based gameplay. if you go too deep inside the game you may get addicted and can become a part of the cancer community. Dota 2 may require more specification and skill to play.