Here are a few links to current Corona information:
Here you can find the current rules for Corona in NRW: Where does 2G apply, where does 3G apply?
When do you gilt as vaccinated, when do you gild as boosted?
What advantages do you have when you are boosted?
On the website of the Robert Koch Institute you will find current corona case numbers
Here you can see how many people in Germany are currently vaccinated and how many are vaccinated per day.