A recent survey by the CIES football observatory showed that Real Madrid and Barcelona produce the joint-most players playing in Europe's top 5 leagues. That might surprise some considering Barcelona's La Masia is arguably the best in the world while Real's is lesser-known. In reality, La Fabrica, Real Madrid's academy, has always produced good players. The thing is that not many have gone on to play for Los Blancos themselves. At the moment the likes of Sergio Reguilon, Marcos Llorente and Achraf Hakimi are all doing well elsewhere.With managers like Zidane and Carlo Ancelotti, who have rarely shown faith in the academy, it's difficult to say whether this trend will change. However, that doesn't mean La Fabrica isn't capable of producing good talents. Here are the five best players who are a part of the academy right now.#5 Rafa MarinA tall, commanding centre-back hailing from the Andalusia region of Spain, Rafa Marin has been a mainstay in Real Madrid's B team this season. The 19-year-old is extremely comfortable in possession as is the requirement for modern centre-backs.Rafa Mainez@Rafa9MainezYa lo comentó hace poco @soprano_35 y lo reafirmo. Con Militao sancionado, Vallejo lesionado y Alaba entre algodones para Elche es el momento para Rafa Marín. Uno de los mejores centrales de la Primera RFEF.Podría ser su debut con el primer equipo del Real Madrid 🏻7:33 AM · Jan 18, 202275566Ya lo comentó hace poco @soprano_35 y lo reafirmo. Con Militao sancionado, Vallejo lesionado y Alaba entre algodones para Elche es el momento para Rafa Marín. Uno de los mejores centrales de la Primera RFEF.Podría ser su debut con el primer equipo del Real Madrid 🔝👏🏻 https://t.co/ng0RkXjMJVMarin is also quite good in defensive duels and in the air. He was recently included in the first-team squad a few times and there was talk of him having the chance to make a first-team debut. While that hasn't been the case yet, the future looks bright for the Spain U-19 international.#4 Sergio ArribasUEFA Champions League Round Of 16 Leg OneSergio Arribas is a technical, diminutive right-winger who has been performing at a very high level for Real Madrid Castilla for the last year or so. Arribas was a pivotal part of Real's U-19 team that won the UEFA Youth League in 2020.Real Madrid C.F. 🇬🇧🇺🇸@realmadriden Unforgettable @ChampionsLeague debut for Sergio Arribas!#RMUCL | #HalaMadrid4:15 AM · Dec 10, 20202655109🌱🙌🌟 Unforgettable @ChampionsLeague debut for Sergio Arribas!#RMUCL | #HalaMadrid https://t.co/5UvTLKxNC3Last season, Arribas made a few first-team appearances under Zidane but so far opportunities haven't done justice to his performances. One good thing for Arribas is the fact that he has played at both the U-19 level and for Castilla under the legendary Raul, from whom he can learn a lot.