Both Jekaba Kazarmas and Cake Paradise are recommended for visiting. The whole impression won't be complete without tea that is delicious here. Google gives it 4.4 so you can select this cafe to spend a good time here.
Wonderful atmosphere and great pies! If you are in Riga definitely this is the place to be for relaxing g cake and tea. Must try the local herbal tea. They have seasonal cakes all the time and all homemade Latvian traditions.