Now do see how hard it is?
I don't see any good center forward of Benzema's caliber who will be available in the coming transfer window. The best time to buy is during the summer break.
The transfer window will just open in January, but yes, preparations for getting new players, of course, they have to consider it from now on in order to get targeted players without strong competition from other big clubs. However, some of Real Madrid's main players should have been replaced by younger players, because it would be bad if they only started looking for new players when so many key players were injured.
I don't know what kind of player is good to replace Benzema, but at least they also have certain assessments of players who have great potential in the future to be recruited.
Indeed, so far there has not been a player worthy of being matched with the quality of Benzema, but if Real Madrid get a player with great potential in the future. So of course, over time the player will be able to adapt to the team and will slowly find his best form at Real Madrid.
So, everything really needs a process and it's not about getting new players who have the same quality as Banzema, because Benzema himself doesn't quickly become great and at least there will always be a process that must be gone through with the many minutes played given.