Keywords in iTunes Connect - how to select?

Question

Apple Developer Program

Tip in iTunes Connect
One or more keywords that describe the app. Searching the App Store for keywords gives more accurate results. Separate keywords with commas.
When I published my first game, I ran into a problem indicating the name of famous games in the keywords, and then the Apple moderators, after ten days of waiting, rejected the publication, indicating that you cannot use keywords for which you do not have rights, or they must be confirmed in writing .
How to be now, how to choose keywords and not break off?