Aria The Animation, Flying Witch Recommendations
At the core of these shows is relaxing atmosphere. They relay on presenting someone mundane activities with touch of supernatural. These shows follow mostly episodic structure, although Aria has somewhat more noticeable structure and goal.
Calm slice of life healing iyashikei. Aria does it best.
Both Flying Witch and Aria (including The Animation, The Origination, etc.) are very calm and relaxing shows. The settings are very different but both series are about teenage girls starting out on new paths in life, and each show focuses on the small but memorable moments that make each day magical. Plus both shows have cats as important characters!