Fébriana
Google
What an absolute delight this museum is!
The location is too far to walk from the old city, but it's accessible with Uber and definitely worth the journey.
You have an option to visit the entire area or just the exhibition area and I opted for both and it was well worth every penny. They have different seasonal exhibitions (per April 2024 I believe they have Yayoi Kusama BTW!) and also permanent exhibition.
One of the highlights of the museum is the Art Deco house and the huge garden area. Visiting the entire place is quite an exercise so prepare yourself and stay hydrated during hot days. Though they also have a cute cafe near the garden area which serves inexpensive drinks and snacks.
Overall, a MUST visit if you're in Porto!