I am traveling to Madrid, looking for a private guide for a small group (three) for the Centro de Arte Reine Sofia. Any recommendations
Federico is a guide for Rick Steves tours.
https://www.ricksteves.com/tours/guides/federico-garcia-barroso
I have traveled in Spain more than any European country and I have had the very good fortune to have been aided in my travels with a number of truly excellent tour guides. I can recommend a wonderful guide in Pamplona, San Sebastian, Bilbao and Toledo - but the guide I compare all others to is Federico Barroso in Madrid. He is in a class by himself. If you have additional interests (Prado, Thyssen, etc.) Federico will make your day memorable.
I am happy to recommend Jorge Roman, also a guide for Rick. Jorge co-led Rick’s Best of Basque Country tour that I took in 2018. In 2021, Jorge did a really enjoyable and informative private half-day walking tour for me in Madrid. A warm, sincere, personable, and enthusiastic gem of a guy.
https://www.guided-by.com/jorge - his email address is at the bottom of the page
We had a great experience with Alfonso through the Gaido app.