Dani Olmo was outstanding and helped Barcelona get a win over Rayo Vallecano. They have been consistent in winning their first 3 La Liga matches. I hope this can continue to be consistent with their performance. At first I doubted they would be able to compete with Real Madrid because Barcelona really has a bad financial condition. They can hardly even bring in a single player because of their huge debt. But finally they were able to get Olmo. I think I am optimistic that Barcelona will be a title contender with Real Madrid. Barcelona's impressive performance will make El Classico interesting to watch again.
The two teams you mentioned are already in such good condition this season and that is indeed very much desired by La Liga lovers, especially Barcelona and Real Madrid fans, so that we can all watch the fierce El Classico matches again this season. However, before the two meet again in La Liga this season, both also need to apply their consistency in winning matches with other teams and also apply unique strategies so that their opponents can find it quite difficult to beat them this season.