Which is the best call of duty to get started?

Since I'm off work from Monday because of Corona and other hobbies are also out of the question thanks to Corona, I need a new job.

So far I've only played Fortnite, so I don't really have any experience in the field. Which call of duty am I best served with?

With the current Modern Warfare, a good old COD is again without this bouncing and flying.