Engaging early chapter books are hard to find. If you have emerging independent readers, you'll definitely want to check out this series. Love the idea of Kindness Cards. I do something similar each year in my classroom at the end of the year, but I like the simplicity of the template below. One thing I've learned when doing this type of activity is to make sure that everyone is assigned a specific person to give the card to and include due dates. Otherwise, people's feelings are hurt.
Activity Name: Kindness Cards
Activity Description: This could be a fun Friday activity. Give each student five kindness card templates and assign them five different names of students in your class. Then, let students spend time decorating the front of each card. I'd tell students that they have one week to include one specific, kind comment about each person on the left hand side of the template and to finish decoerating the front of each card. After one week, I'd collect all the cards to make sure the comments were kind. Then, the following week each student would pass out a card each day of the week. By the end of the week, each student would have five cards with five specific kind comments about himself or herself.
Whether it be for one specific student, a small group of kids, or a whole class, finding a "just right" book makes the teacher's and the students' day.