Best websites or agencies for a 2-month apartment rental in Madrid?

Hi! I’ll be staying in Madrid for around two months for work and I’m looking for a furnished apartment for a short-term rental.

I’ve been checking Idealista and Spotahome, but many options either have very high agency/admin fees or require a longer stay.

Does anyone have recommendations for reliable websites, agencies or flex-living companies for a 2-month rental in Madrid?

Any recent experiences or recommendations would be really appreciated. Thank you!