Why don't you try Overwatch? I even believe it is currently free to play on PC. I am not sure if that lasts forever or not but you can at least check it out. It is not a story driven game and there are plenty game mods to chose from. You can play with other people, you can please with other people on your team against bots and you can play with bots on your team against other bots. So that should be something you like. There are many characters to chose from so if you like the mechanics you should set for a long, long time. There is also Overwatch 2 coming which is supposed to be free for the owners of the first part.
