"What’s the best interactive tool that we can use to help kids (K-2) to self-reflect on learning? We’d like them to be able to use the touch display to ‘pull’ their names into a column that reflects where they are in their learning."
My suggestion was to try using Padlet with columns in the background. Students would have their own notes with their names on them to drag and drop into a column that reflects how they feel about the day's lesson or their overall progress. In this short video I go into a little more detail about how to create that kind of Padlet activity for your students.