Barakamon, Shirogane no Nina Recommendations
Simple slice of stories with a small cast of characters. Barakamon and Shirogane no Nina portrays this style with a realistic way. The story involves everyday life activities ranging from locations at home, school, or out in the city. There is a decent amount of comedy in the form of dialogues and character interactions. They are simple, to the point, and accurately depicts slice of life at their finest.
Both manga have similar settings - A young man in his 20's ends up taking care of a child (or children, in Barakamon's case). Both series are relaxing, funny and cute, with a similar atmosphere.